Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2023-6917

Summary
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
Published At-28 Feb, 2024 | 14:38
Updated At-25 Feb, 2026 | 18:20
Rejected At-
Credits

Pcp: unsafe use of directories allows pcp to root privilege escalation

A vulnerability has been identified in the Performance Co-Pilot (PCP) package, stemming from the mixed privilege levels utilized by systemd services associated with PCP. While certain services operate within the confines of limited PCP user/group privileges, others are granted full root privileges. This disparity in privilege levels poses a risk when privileged root processes interact with directories or directory trees owned by unprivileged PCP users. Specifically, this vulnerability may lead to the compromise of PCP user isolation and facilitate local PCP-to-root exploits, particularly through symlink attacks. These vulnerabilities underscore the importance of maintaining robust privilege separation mechanisms within PCP to mitigate the potential for unauthorized privilege escalation.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:redhat
Assigner Org ID:53f830b8-0a3f-465b-8143-3b8a9948e749
Published At:28 Feb, 2024 | 14:38
Updated At:25 Feb, 2026 | 18:20
Rejected At:
â–¼CVE Numbering Authority (CNA)
Pcp: unsafe use of directories allows pcp to root privilege escalation

A vulnerability has been identified in the Performance Co-Pilot (PCP) package, stemming from the mixed privilege levels utilized by systemd services associated with PCP. While certain services operate within the confines of limited PCP user/group privileges, others are granted full root privileges. This disparity in privilege levels poses a risk when privileged root processes interact with directories or directory trees owned by unprivileged PCP users. Specifically, this vulnerability may lead to the compromise of PCP user isolation and facilitate local PCP-to-root exploits, particularly through symlink attacks. These vulnerabilities underscore the importance of maintaining robust privilege separation mechanisms within PCP to mitigate the potential for unauthorized privilege escalation.

Affected Products
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
pcp
CPEs
  • cpe:/a:redhat:enterprise_linux:9::appstream
Default Status
affected
Versions
Unaffected
  • From 0:6.2.0-1.el9 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
pcp
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
pcp
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
pcp
CPEs
  • cpe:/o:redhat:enterprise_linux:8
Default Status
affected
Problem Types
TypeCWE IDDescription
CWECWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
Type: CWE
CWE ID: CWE-367
Description: Time-of-check Time-of-use (TOCTOU) Race Condition
Metrics
VersionBase scoreBase severityVector
3.16.0MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Version: 3.1
Base score: 6.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Metrics Other Info
Red Hat severity rating
value:
Moderate
namespace:
https://access.redhat.com/security/updates/classification/
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Exploits

Credits

Timeline
EventDate
Reported to Red Hat.2023-12-14 00:00:00
Made public.2024-02-15 00:00:00
Event: Reported to Red Hat.
Date: 2023-12-14 00:00:00
Event: Made public.
Date: 2024-02-15 00:00:00
Replaced By

Rejected Reason

References
HyperlinkResource
https://access.redhat.com/errata/RHSA-2024:2213
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-6917
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2254983
issue-tracking
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2213
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6917
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2254983
Resource:
issue-tracking
x_refsource_REDHAT
â–¼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://access.redhat.com/errata/RHSA-2024:2213
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/security/cve/CVE-2023-6917
vdb-entry
x_refsource_REDHAT
x_transferred
https://bugzilla.redhat.com/show_bug.cgi?id=2254983
issue-tracking
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2213
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6917
Resource:
vdb-entry
x_refsource_REDHAT
x_transferred
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2254983
Resource:
issue-tracking
x_refsource_REDHAT
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:secalert@redhat.com
Published At:28 Feb, 2024 | 15:15
Updated At:25 Feb, 2026 | 19:29

A vulnerability has been identified in the Performance Co-Pilot (PCP) package, stemming from the mixed privilege levels utilized by systemd services associated with PCP. While certain services operate within the confines of limited PCP user/group privileges, others are granted full root privileges. This disparity in privilege levels poses a risk when privileged root processes interact with directories or directory trees owned by unprivileged PCP users. Specifically, this vulnerability may lead to the compromise of PCP user isolation and facilitate local PCP-to-root exploits, particularly through symlink attacks. These vulnerabilities underscore the importance of maintaining robust privilege separation mechanisms within PCP to mitigate the potential for unauthorized privilege escalation.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.0MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Primary3.16.7MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 6.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Type: Primary
Version: 3.1
Base score: 6.7
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CPE Matches

Silicon Graphics, Inc.
sgi
>>performance_co-pilot>>Versions before 6.2.0(exclusive)
cpe:2.3:a:sgi:performance_co-pilot:*:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>9.0
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-367Primarysecalert@redhat.com
CWE ID: CWE-367
Type: Primary
Source: secalert@redhat.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://access.redhat.com/errata/RHSA-2024:2213secalert@redhat.com
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6917secalert@redhat.com
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2254983secalert@redhat.com
Issue Tracking
Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2213af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6917af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2254983af854a3a-2127-422b-91ae-364da2661108
Issue Tracking
Third Party Advisory
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2213
Source: secalert@redhat.com
Resource:
Third Party Advisory
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6917
Source: secalert@redhat.com
Resource:
Third Party Advisory
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2254983
Source: secalert@redhat.com
Resource:
Issue Tracking
Third Party Advisory
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2213
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6917
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2254983
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Issue Tracking
Third Party Advisory

Change History

0
Information is not available yet

Similar CVEs

74Records found

CVE-2019-3831
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.4||MEDIUM
EPSS-1.03% / 60.13%
||
7 Day CHG~0.00%
Published-25 Mar, 2019 | 17:12
Updated-04 Aug, 2024 | 19:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A vulnerability was discovered in vdsm, version 4.19 through 4.30.3 and 4.30.5 through 4.30.8. The systemd_run function exposed to the vdsm system user could be abused to execute arbitrary commands as root.

Action-Not Available
Vendor-ovirt[UNKNOWN]Red Hat, Inc.
Product-gluster_storagevdsmvdsm
CWE ID-CWE-863
Incorrect Authorization
CVE-2024-0775
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.22% / 13.28%
||
7 Day CHG~0.00%
Published-22 Jan, 2024 | 13:03
Updated-20 Nov, 2025 | 18:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: use-after-free while changing the mount option in __ext4_remount leading

A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-enterprise_linuxlinux_kernelRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9
CWE ID-CWE-416
Use After Free
CVE-2021-35939
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.48% / 38.76%
||
7 Day CHG~0.00%
Published-26 Aug, 2022 | 00:00
Updated-04 Aug, 2024 | 00:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-rpmn/aRed Hat, Inc.
Product-enterprise_linuxrpmRPM
CWE ID-CWE-59
Improper Link Resolution Before File Access ('Link Following')
CVE-2024-0193
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-7.8||HIGH
EPSS-0.84% / 54.17%
||
7 Day CHG~0.00%
Published-02 Jan, 2024 | 18:05
Updated-05 Jun, 2026 | 00:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

Action-Not Available
Vendor-Linux Kernel Organization, IncRed Hat, Inc.
Product-codeready_linux_builder_for_ibm_z_systems_eusenterprise_linux_server_ausenterprise_linux_for_arm_64enterprise_linux_for_ibm_z_systems_elscodeready_linux_builder_for_euscodeready_linux_builder_for_power_little_endian_eusenterprise_linuxenterprise_linux_for_power_little_endian_eusenterprise_linux_for_ibm_z_systems_euscodeready_linux_builderenterprise_linux_for_elsenterprise_linux_for_eusenterprise_linux_for_ibm_z_systemsopenshift_loggingenterprise_linux_for_power_little_endianenterprise_linux_for_power_little_endian_elslinux_kernelenterprise_linux_for_arm_64_elscodeready_linux_builder_for_power_little_endianenterprise_linux_for_update_services_for_sap_solutionsenterprise_linux_for_arm_64_euscodeready_linux_builder_for_ibm_z_systemsenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsRed Hat Enterprise Linux 9Red Hat Enterprise Linux 6Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRHOL-5.8-RHEL-9
CWE ID-CWE-416
Use After Free
CVE-2023-6238
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.29% / 21.25%
||
7 Day CHG~0.00%
Published-21 Nov, 2023 | 20:21
Updated-17 Oct, 2024 | 18:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: nvme: memory corruption via unprivileged user passthrough

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

Action-Not Available
Vendor-n/aFedora ProjectLinux Kernel Organization, IncRed Hat, Inc.
Product-fedoralinux_kernelRed Hat Enterprise Linux 9kernelRed Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 7Fedora
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2023-6395
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-1.55% / 72.54%
||
7 Day CHG~0.00%
Published-16 Jan, 2024 | 14:33
Updated-13 Feb, 2025 | 17:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Mock: privilege escalation for users that can access mock configuration

The Mock software contains a vulnerability wherein an attacker could potentially exploit privilege escalation, enabling the execution of arbitrary code with root user privileges. This weakness stems from the absence of proper sandboxing during the expansion and execution of Jinja2 templates, which may be included in certain configuration parameters. While the Mock documentation advises treating users added to the mock group as privileged, certain build systems invoking mock on behalf of users might inadvertently permit less privileged users to define configuration tags. These tags could then be passed as parameters to mock during execution, potentially leading to the utilization of Jinja2 templates for remote privilege escalation and the execution of arbitrary code as the root user on the build server.

Action-Not Available
Vendor-rpm-software-managementn/aRed Hat, Inc.Fedora Project
Product-mockextra_packages_for_enterprise_linuxfedoraRed Hat Enterprise Linux 6Extra Packages for Enterprise LinuxmockFedora
CWE ID-CWE-20
Improper Input Validation
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CVE-2026-5164
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.11% / 1.60%
||
7 Day CHG~0.00%
Published-30 Mar, 2026 | 15:02
Updated-28 Apr, 2026 | 14:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Virtio-win: virtio-win: denial of service via unvalidated descriptor count in unmap request

A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS).

Action-Not Available
Vendor-Red Hat, Inc.
Product-virtio-winenterprise_linuxRed Hat Enterprise Linux 8Red Hat Enterprise Linux 10Red Hat Enterprise Linux 9
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2026-5165
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.11% / 1.44%
||
7 Day CHG~0.00%
Published-30 Mar, 2026 | 15:02
Updated-28 Apr, 2026 | 14:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Virtio-win: virtio-win: memory corruption via use-after-free in virtio blk device reset

A flaw was found in virtio-win, specifically within the VirtIO Block (BLK) device. When the device undergoes a reset, it fails to properly manage memory, resulting in a use-after-free vulnerability. This issue could allow a local attacker to corrupt system memory, potentially leading to system instability or unexpected behavior.

Action-Not Available
Vendor-Red Hat, Inc.
Product-virtio-winenterprise_linuxRed Hat Enterprise Linux 8Red Hat Enterprise Linux 10Red Hat Enterprise Linux 9
CWE ID-CWE-825
Expired Pointer Dereference
CVE-2021-3543
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.30% / 22.38%
||
7 Day CHG~0.00%
Published-01 Jun, 2021 | 13:20
Updated-03 Aug, 2024 | 17:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.

Action-Not Available
Vendor-nitro_enclaves_projectn/aRed Hat, Inc.Fedora Project
Product-nitro_enclavesenterprise_linuxfedorakernel
CWE ID-CWE-416
Use After Free
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2023-4886
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.27% / 19.50%
||
7 Day CHG~0.00%
Published-03 Oct, 2023 | 14:24
Updated-25 Feb, 2026 | 18:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Foreman: world readable file containing secrets

A sensitive information exposure vulnerability was found in foreman. Contents of tomcat's server.xml file, which contain passwords to candlepin's keystore and truststore, were found to be world readable.

Action-Not Available
Vendor-Red Hat, Inc.The Foreman
Product-satelliteforemanRed Hat Satellite 6.13 for RHEL 8Red Hat Satellite 6.14 for RHEL 8
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2026-23185
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-7.8||HIGH
EPSS-0.13% / 2.73%
||
7 Day CHG~0.00%
Published-14 Feb, 2026 | 16:27
Updated-15 Jul, 2026 | 02:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
wifi: iwlwifi: mld: cancel mlo_scan_start_wk

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: cancel mlo_scan_start_wk mlo_scan_start_wk is not canceled on disconnection. In fact, it is not canceled anywhere except in the restart cleanup, where we don't really have to. This can cause an init-after-queue issue: if, for example, the work was queued and then drv_change_interface got executed. This can also cause use-after-free: if the work is executed after the vif is freed.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 9Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 10
CWE ID-CWE-772
Missing Release of Resource after Effective Lifetime
CWE ID-CWE-416
Use After Free
CVE-2024-45774
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.25% / 16.64%
||
7 Day CHG~0.00%
Published-18 Feb, 2025 | 18:25
Updated-29 Jun, 2026 | 23:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Grub2: reader/jpeg: heap oob write during jpeg parsing

A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-45777
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.24% / 15.16%
||
7 Day CHG~0.00%
Published-19 Feb, 2025 | 17:54
Updated-29 Jun, 2026 | 23:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Grub2: grub-core/gettext: integer overflow leads to heap oob write.

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.

Action-Not Available
Vendor-Red Hat, Inc.GNU
Product-openshiftgrub2enterprise_linuxRed Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-787
Out-of-bounds Write
CVE-2025-9908
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.19% / 9.47%
||
7 Day CHG~0.00%
Published-27 Feb, 2026 | 07:29
Updated-25 Mar, 2026 | 20:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Event-driven-ansible: sensitive internal headers disclosure in aap eda event streams

A flaw was found in the Red Hat Ansible Automation Platform, Event-Driven Ansible (EDA) Event Streams. This vulnerability allows an authenticated user to gain access to sensitive internal infrastructure headers (such as X-Trusted-Proxy and X-Envoy-*) and event stream URLs via crafted requests and job templates. By exfiltrating these headers, an attacker could spoof trusted requests, escalate privileges, or perform malicious event injection.

Action-Not Available
Vendor-Red Hat, Inc.
Product-ansible_automation_platformenterprise_linuxansible_developeransible_insideRed Hat Ansible Automation Platform 2.5 for RHEL 8Red Hat Ansible Automation Platform 2.6Red Hat Ansible Automation Platform 2.5Red Hat Ansible Automation Platform 2.6 for RHEL 9Red Hat Ansible Automation Platform 2.5 for RHEL 9
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2025-9907
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.17% / 6.29%
||
7 Day CHG~0.00%
Published-27 Feb, 2026 | 07:29
Updated-26 Mar, 2026 | 16:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Event-driven-ansible: event stream test mode exposes sensitive headers in aap eda

A flaw was found in the Red Hat Ansible Automation Platform, Event-Driven Ansible (EDA) Event Stream API. This vulnerability allows exposure of sensitive client credentials and internal infrastructure headers via the test_headers field when an event stream is in test mode. The possible outcome includes leakage of internal infrastructure details, accidental disclosure of user or system credentials, privilege escalation if high-value tokens are exposed, and persistent sensitive data exposure to all users with read access on the event stream.

Action-Not Available
Vendor-Red Hat, Inc.
Product-ansible_automation_platformenterprise_linuxansible_developeransible_insideRed Hat Ansible Automation Platform 2.5 for RHEL 8Red Hat Ansible Automation Platform 2.6Red Hat Ansible Automation Platform 2.5Red Hat Ansible Automation Platform 2.6 for RHEL 9Red Hat Ansible Automation Platform 2.5 for RHEL 9
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2025-9909
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.17% / 6.29%
||
7 Day CHG~0.00%
Published-27 Feb, 2026 | 07:30
Updated-25 Mar, 2026 | 20:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Aap-gateway: improper path validation in gateway allows credential exfiltration

A flaw was found in the Red Hat Ansible Automation Platform Gateway route creation component. This vulnerability allows credential theft via the creation of misleading routes using a double-slash (//) prefix in the gateway_path. A malicious or socially engineered administrator can configure a honey-pot route to intercept and exfiltrate user credentials, potentially maintaining persistent access or creating a backdoor even after their permissions are revoked.

Action-Not Available
Vendor-Red Hat, Inc.
Product-ansible_automation_platformenterprise_linuxansible_developeransible_insideRed Hat Ansible Automation Platform 2.5 for RHEL 8Red Hat Ansible Automation Platform 2.6Red Hat Ansible Automation Platform 2.5Red Hat Ansible Automation Platform 2.6 for RHEL 9Red Hat Ansible Automation Platform 2.5 for RHEL 9
CWE ID-CWE-647
Use of Non-Canonical URL Paths for Authorization Decisions
CVE-2023-4394
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.21% / 11.07%
||
7 Day CHG~0.00%
Published-17 Aug, 2023 | 12:49
Updated-27 Feb, 2025 | 21:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory leak in btrfs_get_dev_args_from_path()

A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncRed Hat, Inc.Fedora Project
Product-linux_kernelRed Hat Enterprise Linux 9FedoraRed Hat Enterprise Linux 7KernelRed Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-400
Uncontrolled Resource Consumption
CWE ID-CWE-416
Use After Free
CVE-2025-7519
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.18% / 8.27%
||
7 Day CHG~0.00%
Published-14 Jul, 2025 | 13:35
Updated-30 Jun, 2026 | 02:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Polkit: xml policy file with a large number of nested elements may lead to out-of-bounds write

A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.

Action-Not Available
Vendor-Red Hat, Inc.
Product-enterprise_linuxopenshift_container_platformRed Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 6
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-4273
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6||MEDIUM
EPSS-0.66% / 48.00%
||
7 Day CHG~0.00%
Published-09 Aug, 2023 | 14:53
Updated-14 Nov, 2025 | 14:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: exfat: stack overflow in exfat_get_uniname_from_ext_entry

A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.

Action-Not Available
Vendor-Fedora ProjectDebian GNU/LinuxRed Hat, Inc.NetApp, Inc.Linux Kernel Organization, Inc
Product-debian_linuxlinux_kernelh500sh410s_firmwarefedoraenterprise_linuxh300s_firmwareh500s_firmwareh700s_firmwareh410sh300sh700sRed Hat Enterprise Linux 6Red Hat Enterprise Linux 9Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2022-34303
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.7||MEDIUM
EPSS-0.81% / 53.25%
||
7 Day CHG~0.00%
Published-26 Aug, 2022 | 00:00
Updated-03 Aug, 2024 | 09:07
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in Eurosoft bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.

Action-Not Available
Vendor-eurosoft-ukn/aRed Hat, Inc.Microsoft Corporation
Product-windows_server_2016windows_server_2012windows_8.1enterprise_linuxwindows_rt_8.1windows_11uefi_bootloaderwindows_10windows_server_2022windows_server_2019n/a
CVE-2022-34301
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.7||MEDIUM
EPSS-0.94% / 57.16%
||
7 Day CHG~0.00%
Published-26 Aug, 2022 | 00:00
Updated-03 Aug, 2024 | 09:07
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.

Action-Not Available
Vendor-kidann/aRed Hat, Inc.Microsoft Corporation
Product-windows_server_2016windows_server_2012windows_8.1enterprise_linuxwindows_rt_8.1windows_11windows_10cryptopro_securedisk_for_bitlockerwindows_server_2022windows_server_2019n/a
CVE-2022-34302
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.7||MEDIUM
EPSS-1.04% / 60.38%
||
7 Day CHG~0.00%
Published-26 Aug, 2022 | 00:00
Updated-03 Aug, 2024 | 09:07
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in New Horizon Datasys bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader currently in use with this bootloader. Access to the EFI System Partition is required for booting using external media.

Action-Not Available
Vendor-horizondatasysn/aRed Hat, Inc.Microsoft Corporation
Product-windows_server_2016windows_server_2012windows_8.1enterprise_linuxwindows_rt_8.1windows_11uefi_bootloaderwindows_10windows_server_2022windows_server_2019n/a
CVE-2023-33952
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.46% / 37.77%
||
7 Day CHG~0.00%
Published-24 Jul, 2023 | 15:19
Updated-25 Feb, 2026 | 17:20
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.

Action-Not Available
Vendor-Linux Kernel Organization, IncRed Hat, Inc.
Product-linux_kernelenterprise_linux_for_real_time_for_nfventerprise_linuxenterprise_linux_for_real_timeRed Hat Enterprise Linux 6Red Hat Enterprise Linux 9Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat Enterprise Linux 7Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat Enterprise Linux 8
CWE ID-CWE-415
Double Free
CVE-2018-1068
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.45% / 36.82%
||
7 Day CHG~0.00%
Published-16 Mar, 2018 | 16:00
Updated-16 Sep, 2024 | 16:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

Action-Not Available
Vendor-Linux Kernel Organization, Inc.Linux Kernel Organization, IncDebian GNU/LinuxCanonical Ltd.Red Hat, Inc.
Product-enterprise_linux_serverubuntu_linuxdebian_linuxlinux_kernelenterprise_linux_server_eusenterprise_linux_server_ausenterprise_linux_workstationvirtualization_hostenterprise_linux_server_tusenterprise_linux_desktopLinux Kernel
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-2194
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.24% / 15.83%
||
7 Day CHG~0.00%
Published-20 Apr, 2023 | 00:00
Updated-23 Apr, 2025 | 16:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->block[0]" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to crash the system or potentially achieve code execution.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncFedora ProjectRed Hat, Inc.
Product-fedoralinux_kernelenterprise_linuxLinux kernel: i2c: xgene-slimpro
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-2513
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.24% / 15.77%
||
7 Day CHG~0.00%
Published-08 May, 2023 | 00:00
Updated-23 Apr, 2025 | 16:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncRed Hat, Inc.
Product-enterprise_linuxlinux_kernelLinux kernel ext4 filesystem
CWE ID-CWE-416
Use After Free
CVE-2024-45776
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.24% / 15.56%
||
7 Day CHG~0.00%
Published-18 Feb, 2025 | 19:25
Updated-29 Jun, 2026 | 23:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.

When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-10759
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6||MEDIUM
EPSS-0.49% / 39.30%
||
7 Day CHG~0.00%
Published-15 Sep, 2020 | 18:37
Updated-04 Aug, 2024 | 11:14
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A PGP signature bypass flaw was found in fwupd (all versions), which could lead to the installation of unsigned firmware. As per upstream, a signature bypass is theoretically possible, but not practical because the Linux Vendor Firmware Service (LVFS) is either not implemented or enabled in versions of fwupd shipped with Red Hat Enterprise Linux 7 and 8. The highest threat from this vulnerability is to confidentiality and integrity.

Action-Not Available
Vendor-n/aRed Hat, Inc.
Product-enterprise_linuxfwupd
CWE ID-CWE-347
Improper Verification of Cryptographic Signature
CVE-2026-46331
Matching Score-8
Assigner-kernel.org
ShareView Details
Matching Score-8
Assigner-kernel.org
CVSS Score-7.8||HIGH
EPSS-0.53% / 41.38%
||
7 Day CHG+0.20%
Published-16 Jun, 2026 | 06:26
Updated-23 Jul, 2026 | 12:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
net/sched: fix pedit partial COW leading to page cache corruption

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 7Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 6Red Hat OpenShift Container Platform 4.21Red Hat OpenShift Container Platform 4.17Red Hat OpenShift Container Platform 4.18Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat OpenShift Container Platform 4.15Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat OpenShift Container Platform 4.19Red Hat OpenShift Container Platform 4.14Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat OpenShift Container Platform 4.22Red Hat Enterprise Linux 9Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Enterprise Linux 8Red Hat OpenShift Container Platform 4.12Red Hat OpenShift Container Platform 4.13Red Hat OpenShift Container Platform 4.20Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat Enterprise Linux 10.0 Extended Update SupportRed Hat OpenShift Container Platform 4.16Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsNVIDIA for RHEL 10
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-45780
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.26% / 17.87%
||
7 Day CHG~0.00%
Published-03 Mar, 2025 | 14:18
Updated-29 Jun, 2026 | 23:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Grub2: fs/tar: integer overflow causes heap oob write

A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.

Action-Not Available
Vendor-Red Hat, Inc.GNU
Product-grub2Red Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-45781
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.24% / 15.56%
||
7 Day CHG~0.00%
Published-18 Feb, 2025 | 19:25
Updated-29 Jun, 2026 | 23:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Grub2: fs/ufs: oob write in the heap

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat OpenShift Container Platform 4Red Hat Enterprise Linux 7Red Hat Enterprise Linux 9Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-39251
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.7||MEDIUM
EPSS-0.42% / 34.13%
||
7 Day CHG~0.00%
Published-07 Sep, 2021 | 00:00
Updated-02 Dec, 2025 | 22:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.

Action-Not Available
Vendor-tuxeran/aFedora ProjectRed Hat, Inc.Debian GNU/Linux
Product-debian_linuxntfs-3genterprise_linuxfedoran/a
CWE ID-CWE-20
Improper Input Validation
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2021-35938
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.49% / 39.38%
||
7 Day CHG~0.00%
Published-25 Aug, 2022 | 00:00
Updated-04 Aug, 2024 | 00:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-rpmn/aRed Hat, Inc.Fedora Project
Product-fedorarpmenterprise_linuxRPM
CWE ID-CWE-59
Improper Link Resolution Before File Access ('Link Following')
CVE-2021-3411
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.40% / 32.91%
||
7 Day CHG~0.00%
Published-09 Mar, 2021 | 19:08
Updated-03 Aug, 2024 | 16:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in the Linux kernel in versions prior to 5.10. A violation of memory access was found while detecting a padding of int3 in the linking state. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncRed Hat, Inc.
Product-enterprise_linuxlinux_kernelLinux kernel
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CVE-2021-31916
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.70% / 49.53%
||
7 Day CHG~0.00%
Published-06 May, 2021 | 16:14
Updated-03 Aug, 2024 | 23:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncDebian GNU/LinuxRed Hat, Inc.
Product-debian_linuxlinux_kernelenterprise_linuxkernel
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-20292
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.87% / 55.17%
||
7 Day CHG~0.00%
Published-28 May, 2021 | 10:42
Updated-03 Aug, 2024 | 17:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncFedora ProjectDebian GNU/LinuxRed Hat, Inc.
Product-debian_linuxlinux_kernelfedoraenterprise_linuxkernel
CWE ID-CWE-416
Use After Free
CVE-2021-33285
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.7||MEDIUM
EPSS-0.41% / 34.07%
||
7 Day CHG~0.00%
Published-07 Sep, 2021 | 00:00
Updated-03 Dec, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.

Action-Not Available
Vendor-tuxeran/aFedora ProjectRed Hat, Inc.Debian GNU/Linux
Product-debian_linuxntfs-3genterprise_linuxfedoran/a
CWE ID-CWE-20
Improper Input Validation
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-27777
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.50% / 39.99%
||
7 Day CHG~0.00%
Published-15 Dec, 2020 | 16:57
Updated-04 Aug, 2024 | 16:25
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncRed Hat, Inc.
Product-openshift_container_platformenterprise_linuxlinux_kernelkernel
CWE ID-CWE-862
Missing Authorization
CVE-2020-27749
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.57% / 43.90%
||
7 Day CHG~0.00%
Published-03 Mar, 2021 | 16:40
Updated-04 Aug, 2024 | 16:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-n/aRed Hat, Inc.NetApp, Inc.GNUFedora Project
Product-enterprise_linux_server_eusontap_select_deploy_administration_utilityenterprise_linux_server_ausenterprise_linux_workstationenterprise_linuxfedoraenterprise_linux_server_tusgrub2grub2
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2020-25637
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.53% / 41.58%
||
7 Day CHG~0.00%
Published-06 Oct, 2020 | 00:00
Updated-04 Aug, 2024 | 15:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-n/aRed Hat, Inc.openSUSE
Product-libvirtleaplibvirt
CWE ID-CWE-415
Double Free
CVE-2025-57851
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.4||MEDIUM
EPSS-0.11% / 1.67%
||
7 Day CHG~0.00%
Published-08 Apr, 2026 | 13:55
Updated-24 Jul, 2026 | 20:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Mce: privilege escalation via excessive /etc/passwd permissions

A container privilege escalation flaw was found in certain Multicluster Engine for Kubernetes images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.

Action-Not Available
Vendor-Red Hat, Inc.
Product-advanced_cluster_management_for_kubernetesMulticluster Engine for Kubernetes
CWE ID-CWE-276
Incorrect Default Permissions
CVE-2021-4178
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.31% / 23.18%
||
7 Day CHG~0.00%
Published-24 Aug, 2022 | 15:02
Updated-03 Aug, 2024 | 17:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A arbitrary code execution flaw was found in the Fabric 8 Kubernetes client affecting versions 5.0.0-beta-1 and above. Due to an improperly configured YAML parsing, this will allow a local and privileged attacker to supply malicious YAML.

Action-Not Available
Vendor-n/aRed Hat, Inc.
Product-integration_camel_kopenshift_application_runtimesa-mq_streamsfabric8-kubernetesprocess_automationdescision_managerbuild_of_quarkusfuseintegration_camel_quarkuskubernetes-client
CWE ID-CWE-502
Deserialization of Untrusted Data
CVE-2021-20225
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-1.01% / 59.49%
||
7 Day CHG-0.01%
Published-03 Mar, 2021 | 16:44
Updated-03 Aug, 2024 | 17:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Action-Not Available
Vendor-n/aRed Hat, Inc.NetApp, Inc.GNUFedora Project
Product-enterprise_linux_server_eusontap_select_deploy_administration_utilityenterprise_linux_server_ausenterprise_linux_workstationenterprise_linuxfedoraenterprise_linux_server_tusgrub2grub2
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-4878
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.21% / 10.83%
||
7 Day CHG+0.02%
Published-09 Apr, 2026 | 14:49
Updated-27 Jul, 2026 | 14:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Libcap: libcap: privilege escalation via toctou race condition in cap_set_file()

A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.

Action-Not Available
Vendor-tcpdump & libpcapRed Hat, Inc.
Product-openshift_container_platformenterprise_linuxlibcapRed Hat Insights proxy 1.5Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat OpenShift Container Platform 4.17Red Hat OpenShift Container Platform 4.15Red Hat Enterprise Linux 8Red Hat OpenShift Container Platform 4.16Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.4 Extended Update SupportRed Hat Discovery 2Red Hat AI Inference Server 3.3Cost Management 4Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Update Infrastructure 5Red Hat OpenShift Container Platform 4.19Red Hat OpenShift Container Platform 4.13Red Hat OpenShift Container Platform 4.18Red Hat Enterprise Linux 10Red Hat OpenShift Container Platform 4.14Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 6Red Hat Hardened ImagesRed Hat Enterprise Linux 9Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat OpenShift distributed tracing 3.9.1Red Hat OpenShift Container Platform 4Red Hat AI Inference Server 3.2Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat Insights proxy 1.5Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat OpenShift Container Platform 4.17Red Hat OpenShift Container Platform 4.15Red Hat Enterprise Linux 8Red Hat OpenShift Container Platform 4.16Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.4 Extended Update SupportRed Hat Discovery 2Red Hat AI Inference Server 3.3Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Update Infrastructure 5Red Hat OpenShift Container Platform 4.19Red Hat OpenShift Container Platform 4.13Red Hat OpenShift Container Platform 4.18Cost Management Metrics Operator 4Red Hat Enterprise Linux 10Red Hat OpenShift Container Platform 4.14Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 6Red Hat Hardened ImagesRed Hat Enterprise Linux 9Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat OpenShift distributed tracing 3.9.1Red Hat OpenShift Container Platform 4Red Hat AI Inference Server 3.2Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2019-11775
Matching Score-6
Assigner-Eclipse Foundation
ShareView Details
Matching Score-6
Assigner-Eclipse Foundation
CVSS Score-7.4||HIGH
EPSS-1.47% / 71.02%
||
7 Day CHG~0.00%
Published-30 Jul, 2019 | 13:45
Updated-04 Aug, 2024 | 23:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.

Action-Not Available
Vendor-Eclipse Foundation AISBLRed Hat, Inc.
Product-enterprise_linux_serverenterprise_linux_workstationsatelliteenterprise_linux_desktopopenj9Eclipse OpenJ9
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-5947
Matching Score-6
Assigner-Internet Systems Consortium (ISC)
ShareView Details
Matching Score-6
Assigner-Internet Systems Consortium (ISC)
CVSS Score-7.5||HIGH
EPSS-1.39% / 69.40%
||
7 Day CHG~0.00%
Published-20 May, 2026 | 13:10
Updated-23 Jul, 2026 | 12:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
SIG(0) validation during query flood may lead to undefined behavior

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.

Action-Not Available
Vendor-Red Hat, Inc.Internet Systems Consortium, Inc.
Product-bindBIND 9Red Hat Enterprise Linux 9Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 10Red Hat Hardened ImagesRed Hat OpenShift Container Platform 4
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CWE ID-CWE-416
Use After Free
CVE-2026-54228
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.8||HIGH
EPSS-0.10% / 1.16%
||
7 Day CHG~0.00%
Published-13 Jun, 2026 | 02:34
Updated-23 Jul, 2026 | 09:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directories

A time-of-check time-of-use (TOCTOU) race condition was found in the abrt-dbus D-Bus service's SetElement method. Between dump directory creation and post-create event execution, any local user can call SetElement to write arbitrary text files into the root-owned dump directory, bypassing package validation and allowing crashes of unpackaged binaries to survive post-create processing.

Action-Not Available
Vendor-Red Hat, Inc.
Product-Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-52991
Matching Score-6
Assigner-kernel.org
ShareView Details
Matching Score-6
Assigner-kernel.org
CVSS Score-7.8||HIGH
EPSS-0.11% / 1.38%
||
7 Day CHG~0.00%
Published-24 Jun, 2026 | 16:29
Updated-15 Jul, 2026 | 01:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
sched/psi: fix race between file release and pressure write

In the Linux kernel, the following vulnerability has been resolved: sched/psi: fix race between file release and pressure write A potential race condition exists between pressure write and cgroup file release regarding the priv member of struct kernfs_open_file, which triggers the uaf reported in [1]. Consider the following scenario involving execution on two separate CPUs: CPU0 CPU1 ==== ==== vfs_rmdir() kernfs_iop_rmdir() cgroup_rmdir() cgroup_kn_lock_live() cgroup_destroy_locked() cgroup_addrm_files() cgroup_rm_file() kernfs_remove_by_name() kernfs_remove_by_name_ns() vfs_write() __kernfs_remove() new_sync_write() kernfs_drain() kernfs_fop_write_iter() kernfs_drain_open_files() cgroup_file_write() kernfs_release_file() pressure_write() cgroup_file_release() ctx = of->priv; kfree(ctx); of->priv = NULL; cgroup_kn_unlock() cgroup_kn_lock_live() cgroup_get(cgrp) cgroup_kn_unlock() if (ctx->psi.trigger) // here, trigger uaf for ctx, that is of->priv The cgroup_rmdir() is protected by the cgroup_mutex, it also safeguards the memory deallocation of of->priv performed within cgroup_file_release(). However, the operations involving of->priv executed within pressure_write() are not entirely covered by the protection of cgroup_mutex. Consequently, if the code in pressure_write(), specifically the section handling the ctx variable executes after cgroup_file_release() has completed, a uaf vulnerability involving of->priv is triggered. Therefore, the issue can be resolved by extending the scope of the cgroup_mutex lock within pressure_write() to encompass all code paths involving of->priv, thereby properly synchronizing the race condition occurring between cgroup_file_release() and pressure_write(). And, if an live kn lock can be successfully acquired while executing the pressure write operation, it indicates that the cgroup deletion process has not yet reached its final stage; consequently, the priv pointer within open_file cannot be NULL. Therefore, the operation to retrieve the ctx value must be moved to a point *after* the live kn lock has been successfully acquired. In another situation, specifically after entering cgroup_kn_lock_live() but before acquiring cgroup_mutex, there exists a different class of race condition: CPU0: write memory.pressure CPU1: write cgroup.pressure=0 =========================== ============================= kernfs_fop_write_iter() kernfs_get_active_of(of) pressure_write() cgroup_kn_lock_live(memory.pressure) cgroup_tryget(cgrp) kernfs_break_active_protection(kn) ... blocks on cgroup_mutex cgroup_pressure_write() cgroup_kn_lock_live(cgroup.pressure) cgroup_file_show(memory.pressure, false) kernfs_show(false) kernfs_drain_open_files() cgroup_file_release(of) kfree(ctx) of->priv = NULL cgroup_kn_unlock() ... acquires cgroup_mutex ctx = of->priv; // may now be NULL if (ctx->psi.trigger) // NULL dereference Consequently, there is a possibility that of->priv is NULL, the pressure write needs to check for this. Now that the scope of the cgroup_mutex has been expanded, the original explicit cgroup_get/put operations are no longer necessary, this is because acquiring/releasing the live kn lock inherently executes a cgroup get/put operation. [1] BUG: KASAN: slab-use-after-free in pressure_write+0xa4/0x210 kernel/cgroup/cgroup.c:4011 Call Trace: pressure_write+0xa4/0x210 kernel/cgroup/cgroup.c:4011 cgroup_file_write+0x36f/0x790 kernel/cgroup/cgroup.c:43 ---truncated---

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 9Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 10
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CVE-2026-46227
Matching Score-6
Assigner-kernel.org
ShareView Details
Matching Score-6
Assigner-kernel.org
CVSS Score-7.8||HIGH
EPSS-0.10% / 1.18%
||
7 Day CHG~0.00%
Published-28 May, 2026 | 09:40
Updated-15 Jul, 2026 | 02:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL

In the Linux kernel, the following vulnerability has been resolved: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL The SCTP_SENDALL path in sctp_sendmsg() iterates ep->asocs with list_for_each_entry_safe(), which caches the next entry in @tmp before the loop body runs. The body calls sctp_sendmsg_to_asoc(), which may drop the socket lock inside sctp_wait_for_sndbuf(). While the lock is dropped, another thread can SCTP_SOCKOPT_PEELOFF the association cached in @tmp, migrating it to a new endpoint via sctp_sock_migrate() (list_del_init() + list_add_tail() to newep->asocs), and optionally close the new socket which frees the association via kfree_rcu(). The cached @tmp can also be freed by a network ABORT for that association, processed in softirq while the lock is dropped. sctp_wait_for_sndbuf() revalidates @asoc (the current entry) on re-lock via the "sk != asoc->base.sk" and "asoc->base.dead" checks, but nothing revalidates @tmp. After a successful return, the iterator advances to the stale @tmp, yielding either a use-after-free (if the peeled socket was closed) or a list-walk onto the new endpoint's list head (type confusion of &newep->asocs as a struct sctp_association *). Both are reachable from CapEff=0; the type-confusion path gives controlled indirect call via the outqueue.sched->init_sid pointer. Fix by re-deriving @tmp from @asoc after sctp_sendmsg_to_asoc() returns. @asoc is known to still be on ep->asocs at that point: the only callers that list_del an association from ep->asocs are sctp_association_free() (which sets asoc->base.dead) and sctp_assoc_migrate() (which changes asoc->base.sk), and sctp_wait_for_sndbuf() checks both under the lock before any successful return; a tripped check propagates as err < 0 and the loop bails before the re-derive. The SCTP_ABORT path in sctp_sendmsg_check_sflags() returns 0 and the loop hits 'continue' before sctp_sendmsg_to_asoc() is ever called, so the @tmp cached by list_for_each_entry_safe() still covers the lock-held free that ba59fb027307 ("sctp: walk the list of asoc safely") was added for.

Action-Not Available
Vendor-Red Hat, Inc.Linux Kernel Organization, Inc
Product-linux_kernelLinuxRed Hat Enterprise Linux 9Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat Enterprise Linux 9.6 Extended Update SupportRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat Enterprise Linux 10Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
CWE ID-CWE-416
Use After Free
CVE-2013-4235
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.31% / 22.99%
||
7 Day CHG~0.00%
Published-03 Dec, 2019 | 00:00
Updated-06 Aug, 2024 | 16:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees

Action-Not Available
Vendor-shadowDebian GNU/LinuxRed Hat, Inc.Fedora Project
Product-debian_linuxshadowfedoraenterprise_linuxshadow
CWE ID-CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
  • Previous
  • 1
  • 2
  • Next
Details not found