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Vulnerability Details :

CVE-2020-15563

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-07 Jul, 2020 | 12:23
Updated At-04 Aug, 2024 | 13:22
Rejected At-
Credits

An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM guest may cause the hypervisor to crash, resulting in Denial of Service (DoS) affecting the entire host. Xen versions from 4.8 onwards are affected. Xen versions 4.7 and earlier are not affected. Only x86 systems are affected. Arm systems are not affected. Only x86 HVM guests using shadow paging can leverage the vulnerability. In addition, there needs to be an entity actively monitoring a guest's video frame buffer (typically for display purposes) in order for such a guest to be able to leverage the vulnerability. x86 PV guests, as well as x86 HVM guests using hardware assisted paging (HAP), cannot leverage the vulnerability.

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)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:07 Jul, 2020 | 12:23
Updated At:04 Aug, 2024 | 13:22
Rejected At:
▼CVE Numbering Authority (CNA)

An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM guest may cause the hypervisor to crash, resulting in Denial of Service (DoS) affecting the entire host. Xen versions from 4.8 onwards are affected. Xen versions 4.7 and earlier are not affected. Only x86 systems are affected. Arm systems are not affected. Only x86 HVM guests using shadow paging can leverage the vulnerability. In addition, there needs to be an entity actively monitoring a guest's video frame buffer (typically for display purposes) in order for such a guest to be able to leverage the vulnerability. x86 PV guests, as well as x86 HVM guests using hardware assisted paging (HAP), cannot leverage the vulnerability.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
http://xenbits.xen.org/xsa/advisory-319.html
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/07/07/3
mailing-list
x_refsource_MLIST
https://www.debian.org/security/2020/dsa-4723
vendor-advisory
x_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
vendor-advisory
x_refsource_SUSE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/
vendor-advisory
x_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
vendor-advisory
x_refsource_SUSE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/
vendor-advisory
x_refsource_FEDORA
https://security.gentoo.org/glsa/202007-02
vendor-advisory
x_refsource_GENTOO
Hyperlink: http://xenbits.xen.org/xsa/advisory-319.html
Resource:
x_refsource_MISC
Hyperlink: http://www.openwall.com/lists/oss-security/2020/07/07/3
Resource:
mailing-list
x_refsource_MLIST
Hyperlink: https://www.debian.org/security/2020/dsa-4723
Resource:
vendor-advisory
x_refsource_DEBIAN
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
Resource:
vendor-advisory
x_refsource_SUSE
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/
Resource:
vendor-advisory
x_refsource_FEDORA
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
Resource:
vendor-advisory
x_refsource_SUSE
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/
Resource:
vendor-advisory
x_refsource_FEDORA
Hyperlink: https://security.gentoo.org/glsa/202007-02
Resource:
vendor-advisory
x_refsource_GENTOO
▼Authorized Data Publishers (ADP)
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
http://xenbits.xen.org/xsa/advisory-319.html
x_refsource_MISC
x_transferred
http://www.openwall.com/lists/oss-security/2020/07/07/3
mailing-list
x_refsource_MLIST
x_transferred
https://www.debian.org/security/2020/dsa-4723
vendor-advisory
x_refsource_DEBIAN
x_transferred
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
vendor-advisory
x_refsource_SUSE
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/
vendor-advisory
x_refsource_FEDORA
x_transferred
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
vendor-advisory
x_refsource_SUSE
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/
vendor-advisory
x_refsource_FEDORA
x_transferred
https://security.gentoo.org/glsa/202007-02
vendor-advisory
x_refsource_GENTOO
x_transferred
Hyperlink: http://xenbits.xen.org/xsa/advisory-319.html
Resource:
x_refsource_MISC
x_transferred
Hyperlink: http://www.openwall.com/lists/oss-security/2020/07/07/3
Resource:
mailing-list
x_refsource_MLIST
x_transferred
Hyperlink: https://www.debian.org/security/2020/dsa-4723
Resource:
vendor-advisory
x_refsource_DEBIAN
x_transferred
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
Resource:
vendor-advisory
x_refsource_SUSE
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
Resource:
vendor-advisory
x_refsource_SUSE
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: https://security.gentoo.org/glsa/202007-02
Resource:
vendor-advisory
x_refsource_GENTOO
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:07 Jul, 2020 | 13:15
Updated At:07 Nov, 2023 | 03:17

An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM guest may cause the hypervisor to crash, resulting in Denial of Service (DoS) affecting the entire host. Xen versions from 4.8 onwards are affected. Xen versions 4.7 and earlier are not affected. Only x86 systems are affected. Arm systems are not affected. Only x86 HVM guests using shadow paging can leverage the vulnerability. In addition, there needs to be an entity actively monitoring a guest's video frame buffer (typically for display purposes) in order for such a guest to be able to leverage the vulnerability. x86 PV guests, as well as x86 HVM guests using hardware assisted paging (HAP), cannot leverage the vulnerability.

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
Primary3.16.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Primary2.04.7MEDIUM
AV:L/AC:M/Au:N/C:N/I:N/A:C
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Type: Primary
Version: 2.0
Base score: 4.7
Base severity: MEDIUM
Vector:
AV:L/AC:M/Au:N/C:N/I:N/A:C
CPE Matches

Xen Project
xen
>>xen>>Versions from 4.8.0(inclusive) to 4.13.1(inclusive)
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*
Debian GNU/Linux
debian
>>debian_linux>>10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>31
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>32
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
openSUSE
opensuse
>>leap>>15.2
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-119Primarynvd@nist.gov
CWE ID: CWE-119
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.htmlcve@mitre.org
Mailing List
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.htmlcve@mitre.org
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/07/07/3cve@mitre.org
Mailing List
Third Party Advisory
http://xenbits.xen.org/xsa/advisory-319.htmlcve@mitre.org
Patch
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/cve@mitre.org
N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/cve@mitre.org
N/A
https://security.gentoo.org/glsa/202007-02cve@mitre.org
Third Party Advisory
https://www.debian.org/security/2020/dsa-4723cve@mitre.org
Third Party Advisory
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
Source: cve@mitre.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
Source: cve@mitre.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: http://www.openwall.com/lists/oss-security/2020/07/07/3
Source: cve@mitre.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: http://xenbits.xen.org/xsa/advisory-319.html
Source: cve@mitre.org
Resource:
Patch
Vendor Advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://security.gentoo.org/glsa/202007-02
Source: cve@mitre.org
Resource:
Third Party Advisory
Hyperlink: https://www.debian.org/security/2020/dsa-4723
Source: cve@mitre.org
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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Matching Score-8
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EPSS-0.09% / 26.01%
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7 Day CHG~0.00%
Published-22 Oct, 2020 | 20:32
Updated-04 Aug, 2024 | 16:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction

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Vendor-Xen ProjectDebian GNU/LinuxFedora Project
Product-debian_linuxfedoraxenxen
CWE ID-CWE-770
Allocation of Resources Without Limits or Throttling
CVE-2019-19083
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Assigner-MITRE Corporation
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CVSS Score-4.7||MEDIUM
EPSS-0.05% / 13.30%
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7 Day CHG~0.00%
Published-18 Nov, 2019 | 05:24
Updated-05 Aug, 2024 | 02:09
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Memory leaks in *clock_source_create() functions under drivers/gpu/drm/amd/display/dc in the Linux kernel before 5.3.8 allow attackers to cause a denial of service (memory consumption). This affects the dce112_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c, the dce100_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c, the dcn10_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c, the dcn20_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c, the dce120_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c, the dce110_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c, and the dce80_clock_source_create() function in drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c, aka CID-055e547478a1.

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Vendor-n/aopenSUSELinux Kernel Organization, IncCanonical Ltd.
Product-ubuntu_linuxlinux_kernelleapn/a
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Missing Release of Memory after Effective Lifetime
CVE-2016-10741
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CVSS Score-4.7||MEDIUM
EPSS-0.07% / 21.93%
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7 Day CHG~0.00%
Published-01 Feb, 2019 | 16:00
Updated-06 Aug, 2024 | 03:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly release locks, which might allow guest OS administrators to cause a denial of service (deadlock or host crash) via unspecified vectors, related to XENMEM_exchange error handling.

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Product-xenn/a
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Assigner-MITRE Corporation
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Matching Score-8
Assigner-MITRE Corporation
CVSS Score-10||CRITICAL
EPSS-0.35% / 56.43%
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7 Day CHG~0.00%
Published-16 Nov, 2015 | 00:00
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Vendor-n/aLinux Kernel Organization, IncCanonical Ltd.Oracle CorporationXen ProjectDebian GNU/Linux
Product-solarisvm_virtualboxlinux_kernelubuntu_linuxxendebian_linuxn/a
CVE-2015-8339
Matching Score-8
Assigner-MITRE Corporation
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Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.10% / 27.71%
||
7 Day CHG~0.00%
Published-17 Dec, 2015 | 19:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly hand back pages to a domain, which might allow guest OS administrators to cause a denial of service (host crash) via unspecified vectors related to domain teardown.

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Assigner-MITRE Corporation
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Matching Score-8
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CVSS Score-6.5||MEDIUM
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Updated-20 Apr, 2025 | 01:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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The eepro100 emulator in QEMU qemu-kvm blank allows local guest users to cause a denial of service (application crash and infinite loop) via vectors involving the command block list.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CVE-2015-8613
Matching Score-8
Assigner-Red Hat, Inc.
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Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.10% / 27.44%
||
7 Day CHG~0.00%
Published-11 Apr, 2017 | 19:00
Updated-20 Apr, 2025 | 01:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Stack-based buffer overflow in the megasas_ctrl_get_info function in QEMU, when built with SCSI MegaRAID SAS HBA emulation support, allows local guest users to cause a denial of service (QEMU instance crash) via a crafted SCSI controller CTRL_GET_INFO command.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2015-8551
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6||MEDIUM
EPSS-0.07% / 22.60%
||
7 Day CHG~0.00%
Published-13 Apr, 2016 | 15:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncopenSUSESUSEDebian GNU/Linux
Product-linux_kernelopensuselinux_enterprise_real_time_extensionlinux_enterprise_desktoplinux_enterprise_workstation_extensiondebian_linuxlinux_enterprise_serverlinux_enterprise_software_development_kitn/a
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2014-9066
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.03% / 8.56%
||
7 Day CHG~0.00%
Published-09 Dec, 2014 | 22:52
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.

Action-Not Available
Vendor-n/aXen ProjectopenSUSE
Product-opensusexenn/a
CVE-2014-8866
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.09% / 27.07%
||
7 Day CHG~0.00%
Published-01 Dec, 2014 | 15:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.

Action-Not Available
Vendor-n/aXen ProjectDebian GNU/LinuxopenSUSE
Product-debian_linuxopensusexenn/a
CVE-2014-5146
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.07% / 21.70%
||
7 Day CHG~0.00%
Published-22 Aug, 2014 | 14:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5149.

Action-Not Available
Vendor-n/aXen ProjectopenSUSE
Product-opensusexenn/a
CVE-2014-5149
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.07% / 21.70%
||
7 Day CHG~0.00%
Published-22 Aug, 2014 | 14:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Certain MMU virtualization operations in Xen 4.2.x through 4.4.x, when using shadow pagetables, are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5146.

Action-Not Available
Vendor-n/aXen ProjectopenSUSE
Product-opensusexenn/a
CVE-2014-3646
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.06% / 17.07%
||
7 Day CHG~0.00%
Published-10 Nov, 2014 | 11:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel through 3.17.2 does not have an exit handler for the INVVPID instruction, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application.

Action-Not Available
Vendor-n/aopenSUSELinux Kernel Organization, IncSUSERed Hat, Inc.Debian GNU/LinuxCanonical Ltd.
Product-enterprise_linuxlinux_kernelubuntu_linuxevergreensuse_linux_enterprise_serverdebian_linuxn/a
CVE-2014-3611
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.04% / 11.16%
||
7 Day CHG~0.00%
Published-10 Nov, 2014 | 11:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Race condition in the __kvm_migrate_pit_timer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service (host OS crash) by leveraging incorrect PIT emulation.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncRed Hat, Inc.Debian GNU/LinuxCanonical Ltd.
Product-enterprise_linuxdebian_linuxlinux_kernelubuntu_linuxn/a
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2014-2678
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.09% / 26.79%
||
7 Day CHG~0.00%
Published-01 Apr, 2014 | 01:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The rds_iw_laddr_check function in net/rds/iw.c in the Linux kernel through 3.14 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a bind system call for an RDS socket on a system that lacks RDS transports.

Action-Not Available
Vendor-n/aFedora ProjectOracle CorporationLinux Kernel Organization, Inc
Product-linux_kernelfedoralinuxn/a
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2008-5701
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.06% / 18.67%
||
7 Day CHG~0.00%
Published-22 Dec, 2008 | 15:00
Updated-07 Aug, 2024 | 11:04
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Array index error in arch/mips/kernel/scall64-o32.S in the Linux kernel before 2.6.28-rc8 on 64-bit MIPS platforms allows local users to cause a denial of service (system crash) via an o32 syscall with a small syscall number, which leads to an attempted read operation outside the bounds of the syscall table.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncDebian GNU/Linux
Product-debian_linuxlinux_kerneln/a
CWE ID-CWE-189
Not Available
CVE-2020-25597
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.05% / 14.40%
||
7 Day CHG~0.00%
Published-23 Sep, 2020 | 21:05
Updated-04 Aug, 2024 | 15:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Xen through 4.14.x. There is mishandling of the constraint that once-valid event channels may not turn invalid. Logic in the handling of event channel operations in Xen assumes that an event channel, once valid, will not become invalid over the life time of a guest. However, operations like the resetting of all event channels may involve decreasing one of the bounds checked when determining validity. This may lead to bug checks triggering, crashing the host. An unprivileged guest may be able to crash Xen, leading to a Denial of Service (DoS) for the entire system. All Xen versions from 4.4 onwards are vulnerable. Xen versions 4.3 and earlier are not vulnerable. Only systems with untrusted guests permitted to create more than the default number of event channels are vulnerable. This number depends on the architecture and type of guest. For 32-bit x86 PV guests, this is 1023; for 64-bit x86 PV guests, and for all ARM guests, this number is 4095. Systems where untrusted guests are limited to fewer than this number are not vulnerable. Note that xl and libxl limit max_event_channels to 1023 by default, so systems using exclusively xl, libvirt+libxl, or their own toolstack based on libxl, and not explicitly setting max_event_channels, are not vulnerable.

Action-Not Available
Vendor-n/aFedora ProjectXen Project
Product-xenfedoran/a
CWE ID-CWE-755
Improper Handling of Exceptional Conditions
CVE-2008-3831
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.09% / 26.62%
||
7 Day CHG~0.00%
Published-20 Oct, 2008 | 17:00
Updated-07 Aug, 2024 | 09:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The i915 driver in (1) drivers/char/drm/i915_dma.c in the Linux kernel 2.6.24 on Debian GNU/Linux and (2) sys/dev/pci/drm/i915_drv.c in OpenBSD does not restrict the DRM_I915_HWS_ADDR ioctl to the Direct Rendering Manager (DRM) master, which allows local users to cause a denial of service (memory corruption) via a crafted ioctl call, related to absence of the DRM_MASTER and DRM_ROOT_ONLY flags in the ioctl's configuration.

Action-Not Available
Vendor-n/aDebian GNU/LinuxOpenBSDLinux Kernel Organization, Inc
Product-linux_kernellinuxn/a
CWE ID-CWE-399
Not Available
CVE-2012-6333
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.07% / 21.89%
||
7 Day CHG~0.00%
Published-13 Dec, 2012 | 11:00
Updated-11 Apr, 2025 | 00:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.

Action-Not Available
Vendor-n/aXen Project
Product-xenn/a
CVE-2020-25625
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.01% / 0.82%
||
7 Day CHG~0.00%
Published-25 Sep, 2020 | 04:12
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

hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CWE ID-CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
CVE-2020-29568
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.10% / 28.21%
||
7 Day CHG~0.00%
Published-15 Dec, 2020 | 16:52
Updated-04 Aug, 2024 | 16:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.

Action-Not Available
Vendor-n/aDebian GNU/LinuxXen Project
Product-xendebian_linuxn/a
CWE ID-CWE-770
Allocation of Resources Without Limits or Throttling
CVE-2022-23035
Matching Score-8
Assigner-Xen Project
ShareView Details
Matching Score-8
Assigner-Xen Project
CVSS Score-4.6||MEDIUM
EPSS-0.11% / 30.87%
||
7 Day CHG~0.00%
Published-25 Jan, 2022 | 13:46
Updated-03 Aug, 2024 | 03:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.

Action-Not Available
Vendor-Debian GNU/LinuxFedora ProjectXen Project
Product-xendebian_linuxfedoraxen
CWE ID-CWE-459
Incomplete Cleanup
CVE-2017-8379
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.08% / 23.39%
||
7 Day CHG~0.00%
Published-23 May, 2017 | 03:56
Updated-20 Apr, 2025 | 01:37
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 the keyboard input event handlers support in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events.

Action-Not Available
Vendor-n/aQEMUDebian GNU/LinuxRed Hat, Inc.
Product-qemudebian_linuxopenstackn/a
CWE ID-CWE-772
Missing Release of Resource after Effective Lifetime
CVE-2020-1983
Matching Score-8
Assigner-Palo Alto Networks, Inc.
ShareView Details
Matching Score-8
Assigner-Palo Alto Networks, Inc.
CVSS Score-7.5||HIGH
EPSS-0.14% / 34.78%
||
7 Day CHG~0.00%
Published-22 Apr, 2020 | 19:30
Updated-16 Sep, 2024 | 19:41
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
libslirp: use after free vulnerability cause a denial of service.

A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.

Action-Not Available
Vendor-libslirp_projectslirpCanonical Ltd.openSUSEFedora ProjectDebian GNU/Linux
Product-ubuntu_linuxdebian_linuxfedoralibslirpleaplibslirp
CWE ID-CWE-416
Use After Free
CVE-2007-3304
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.14% / 35.13%
||
7 Day CHG~0.00%
Published-20 Jun, 2007 | 22:00
Updated-07 Aug, 2024 | 14:14
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Apache httpd 1.3.37, 2.0.59, and 2.2.4 with the Prefork MPM module, allows local users to cause a denial of service by modifying the worker_score and process_score arrays to reference an arbitrary process ID, which is sent a SIGUSR1 signal from the master process, aka "SIGUSR1 killer."

Action-Not Available
Vendor-n/aCanonical Ltd.The Apache Software FoundationFedora ProjectRed Hat, Inc.
Product-enterprise_linux_serverhttp_serverubuntu_linuxenterprise_linux_workstationfedoraenterprise_linux_desktopn/a
CVE-2017-5667
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.16% / 37.86%
||
7 Day CHG~0.00%
Published-16 Mar, 2017 | 15:00
Updated-20 Apr, 2025 | 01:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds heap access and crash) or execute arbitrary code on the QEMU host via vectors involving the data transfer length.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CWE ID-CWE-125
Out-of-bounds Read
CVE-2023-46841
Matching Score-8
Assigner-Xen Project
ShareView Details
Matching Score-8
Assigner-Xen Project
CVSS Score-6.5||MEDIUM
EPSS-0.05% / 16.60%
||
7 Day CHG~0.00%
Published-20 Mar, 2024 | 10:40
Updated-12 May, 2025 | 15:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
x86: shadow stack vs exceptions from emulation stubs

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology (CET). A sub-feature of this are Shadow Stacks (CET-SS). CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses are accompanied by so called "shadow stacks", holding little more than return addresses. Shadow stacks aren't writable by normal instructions, and upon function returns their contents are used to check for possible manipulation of a return address coming from the traditional stack. In particular certain memory accesses need intercepting by Xen. In various cases the necessary emulation involves kind of replaying of the instruction. Such replaying typically involves filling and then invoking of a stub. Such a replayed instruction may raise an exceptions, which is expected and dealt with accordingly. Unfortunately the interaction of both of the above wasn't right: Recovery involves removal of a call frame from the (traditional) stack. The counterpart of this operation for the shadow stack was missing.

Action-Not Available
Vendor-Fedora ProjectXen Project
Product-fedoraxenXen
CVE-2013-0153
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.12% / 31.47%
||
7 Day CHG~0.00%
Published-14 Feb, 2013 | 22:00
Updated-11 Apr, 2025 | 00:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The AMD IOMMU support in Xen 4.2.x, 4.1.x, 3.3, and other versions, when using AMD-Vi for PCI passthrough, uses the same interrupt remapping table for the host and all guests, which allows guests to cause a denial of service by injecting an interrupt into other guests.

Action-Not Available
Vendor-n/aXen Project
Product-xenn/a
CVE-2007-2172
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.07% / 21.35%
||
7 Day CHG~0.00%
Published-22 Apr, 2007 | 19:00
Updated-07 Aug, 2024 | 13:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A typo in Linux kernel 2.6 before 2.6.21-rc6 and 2.4 before 2.4.35 causes RTA_MAX to be used as an array size instead of RTN_MAX, which leads to an "out of bound access" by the (1) dn_fib_props (dn_fib.c, DECNet) and (2) fib_props (fib_semantics.c, IPv4) functions.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncDebian GNU/LinuxCanonical Ltd.
Product-ubuntu_linuxdebian_linuxlinux_kerneln/a
CWE ID-CWE-20
Improper Input Validation
CVE-2020-15566
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.03% / 5.65%
||
7 Day CHG~0.00%
Published-07 Jul, 2020 | 12:23
Updated-04 Aug, 2024 | 13:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a host OS crash because of incorrect error handling in event-channel port allocation. The allocation of an event-channel port may fail for multiple reasons: (1) port is already in use, (2) the memory allocation failed, or (3) the port we try to allocate is higher than what is supported by the ABI (e.g., 2L or FIFO) used by the guest or the limit set by an administrator (max_event_channels in xl cfg). Due to the missing error checks, only (1) will be considered an error. All the other cases will provide a valid port and will result in a crash when trying to access the event channel. When the administrator configured a guest to allow more than 1023 event channels, that guest may be able to crash the host. When Xen is out-of-memory, allocation of new event channels will result in crashing the host rather than reporting an error. Xen versions 4.10 and later are affected. All architectures are affected. The default configuration, when guests are created with xl/libxl, is not vulnerable, because of the default event-channel limit.

Action-Not Available
Vendor-n/aDebian GNU/LinuxXen Project
Product-xendebian_linuxn/a
CWE ID-CWE-754
Improper Check for Unusual or Exceptional Conditions
CVE-2020-14385
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.04% / 10.04%
||
7 Day CHG~0.00%
Published-15 Sep, 2020 | 21:14
Updated-04 Aug, 2024 | 12:46
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 before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.

Action-Not Available
Vendor-Linux KernelLinux Kernel Organization, IncDebian GNU/LinuxCanonical Ltd.
Product-ubuntu_linuxdebian_linuxlinux_kernelkernel
CWE ID-CWE-131
Incorrect Calculation of Buffer Size
CVE-2020-14416
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-4.2||MEDIUM
EPSS-0.09% / 26.65%
||
7 Day CHG~0.00%
Published-18 Jun, 2020 | 10:45
Updated-04 Aug, 2024 | 12:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c.

Action-Not Available
Vendor-n/aopenSUSELinux Kernel Organization, Inc
Product-linux_kernelleapn/a
CWE ID-CWE-416
Use After Free
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2022-20796
Matching Score-8
Assigner-Cisco Systems, Inc.
ShareView Details
Matching Score-8
Assigner-Cisco Systems, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.03% / 5.41%
||
7 Day CHG~0.00%
Published-04 May, 2022 | 17:06
Updated-06 Nov, 2024 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022

On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog.

Action-Not Available
Vendor-ClamAVDebian GNU/LinuxFedora ProjectCisco Systems, Inc.
Product-secure_endpointclamavdebian_linuxfedoraCisco AMP for Endpoints
CWE ID-CWE-822
Untrusted Pointer Dereference
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2020-12888
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.03% / 6.12%
||
7 Day CHG~0.00%
Published-15 May, 2020 | 17:02
Updated-04 Aug, 2024 | 12:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

Action-Not Available
Vendor-n/aFedora ProjectopenSUSECanonical Ltd.Linux Kernel Organization, IncNetApp, Inc.Debian GNU/Linux
Product-ubuntu_linuxbootstrap_osa700s_firmwarecloud_backuph300s_firmwareh410c_firmwareh410sh610s_firmwareh300shci_compute_nodesolidfire_baseboard_management_controllersteelstore_cloud_integrated_storageh300e_firmwareh610sh500ehci_management_nodefedorah500s_firmwareh500e_firmwarea700sh700eh610c_firmwareh610cleaph300eh500sh615c_firmwareactive_iq_unified_managerelement_softwaresolidfiredebian_linuxlinux_kernelh410s_firmwareh700s_firmwareh615ch410ch700e_firmwaresolidfire_baseboard_management_controller_firmwareh700sn/a
CWE ID-CWE-755
Improper Handling of Exceptional Conditions
CVE-2023-3180
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6||MEDIUM
EPSS-0.01% / 1.58%
||
7 Day CHG~0.00%
Published-03 Aug, 2023 | 14:31
Updated-25 Sep, 2024 | 19:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Heap buffer overflow in virtio_crypto_sym_op_helper()

A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.

Action-Not Available
Vendor-n/aQEMUDebian GNU/LinuxFedora ProjectRed Hat, Inc.
Product-debian_linuxqemufedoraExtra Packages for Enterprise LinuxqemuRed Hat Enterprise Linux 9Red Hat Enterprise Linux 6Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat Enterprise Linux 8Red Hat Enterprise Linux 7Fedora
CWE ID-CWE-122
Heap-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2017-17565
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-5.6||MEDIUM
EPSS-0.07% / 21.06%
||
7 Day CHG~0.00%
Published-12 Dec, 2017 | 22:00
Updated-20 Apr, 2025 | 01:37
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P.

Action-Not Available
Vendor-n/aXen Project
Product-xenn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2015-4167
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.05% / 13.32%
||
7 Day CHG~0.00%
Published-05 Aug, 2015 | 18:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The udf_read_inode function in fs/udf/inode.c in the Linux kernel before 3.19.1 does not validate certain length values, which allows local users to cause a denial of service (incorrect data representation or integer overflow, and OOPS) via a crafted UDF filesystem.

Action-Not Available
Vendor-n/aDebian GNU/LinuxLinux Kernel Organization, IncCanonical Ltd.
Product-debian_linuxlinux_kernelubuntu_linuxn/a
CVE-2021-28712
Matching Score-8
Assigner-Xen Project
ShareView Details
Matching Score-8
Assigner-Xen Project
CVSS Score-6.5||MEDIUM
EPSS-0.05% / 13.86%
||
7 Day CHG~0.00%
Published-05 Jan, 2022 | 16:10
Updated-03 Aug, 2024 | 21:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/LinuxXen Project
Product-xendebian_linuxLinux
CVE-2021-28711
Matching Score-8
Assigner-Xen Project
ShareView Details
Matching Score-8
Assigner-Xen Project
CVSS Score-6.5||MEDIUM
EPSS-0.05% / 13.86%
||
7 Day CHG~0.00%
Published-05 Jan, 2022 | 16:10
Updated-03 Aug, 2024 | 21:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713

Action-Not Available
Vendor-Linux Kernel Organization, IncDebian GNU/LinuxXen Project
Product-xendebian_linuxLinux
CVE-2021-28039
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.14% / 34.66%
||
7 Day CHG~0.00%
Published-05 Mar, 2021 | 00:00
Updated-03 Aug, 2024 | 21:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.

Action-Not Available
Vendor-n/aLinux Kernel Organization, IncNetApp, Inc.Xen Project
Product-cloud_backupxenlinux_kernelsolidfire_baseboard_management_controller_firmwaren/a
CWE ID-CWE-131
Incorrect Calculation of Buffer Size
CVE-2021-20196
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.03% / 7.10%
||
7 Day CHG~0.00%
Published-26 May, 2021 | 21:16
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 NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemuqemu
CWE ID-CWE-476
NULL Pointer Dereference
CVE-2013-2078
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-4.7||MEDIUM
EPSS-0.06% / 17.14%
||
7 Day CHG~0.00%
Published-14 Aug, 2013 | 15:00
Updated-11 Apr, 2025 | 00:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Xen 4.0.2 through 4.0.4, 4.1.x, and 4.2.x allows local PV guest users to cause a denial of service (hypervisor crash) via certain bit combinations to the XSETBV instruction.

Action-Not Available
Vendor-n/aXen Project
Product-xenn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2016-9914
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.07% / 22.25%
||
7 Day CHG~0.00%
Published-29 Dec, 2016 | 22:00
Updated-12 Apr, 2025 | 10:46
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 hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in FileOperations.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CWE ID-CWE-401
Missing Release of Memory after Effective Lifetime
CVE-2020-8834
Matching Score-8
Assigner-Canonical Ltd.
ShareView Details
Matching Score-8
Assigner-Canonical Ltd.
CVSS Score-6.5||MEDIUM
EPSS-0.10% / 28.11%
||
7 Day CHG~0.00%
Published-09 Apr, 2020 | 22:10
Updated-16 Sep, 2024 | 22:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Linux kernel KVM Power8 conflicting use of HSTATE_HOST_R1

KVM in the Linux kernel on Power8 processors has a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability run code in kernel space of a guest VM can cause the host kernel to panic. There were two commits that, according to the reporter, introduced the vulnerability: f024ee098476 ("KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures") 87a11bb6a7f7 ("KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode") The former landed in 4.8, the latter in 4.17. This was fixed without realizing the impact in 4.18 with the following three commits, though it's believed the first is the only strictly necessary commit: 6f597c6b63b6 ("KVM: PPC: Book3S PR: Add guest MSR parameter for kvmppc_save_tm()/kvmppc_restore_tm()") 7b0e827c6970 ("KVM: PPC: Book3S HV: Factor fake-suspend handling out of kvmppc_save/restore_tm") 009c872a8bc4 ("KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate file")

Action-Not Available
Vendor-Linux kernelIBM CorporationopenSUSELinux Kernel Organization, IncCanonical Ltd.
Product-ubuntu_linuxlinux_kernelpower8leapLinux kernel
CWE ID-CWE-368
Context Switching Race Condition
CWE ID-CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE-2020-29483
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-6.5||MEDIUM
EPSS-0.06% / 17.32%
||
7 Day CHG~0.00%
Published-15 Dec, 2020 | 17:15
Updated-04 Aug, 2024 | 16:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Xen through 4.14.x. Xenstored and guests communicate via a shared memory page using a specific protocol. When a guest violates this protocol, xenstored will drop the connection to that guest. Unfortunately, this is done by just removing the guest from xenstored's internal management, resulting in the same actions as if the guest had been destroyed, including sending an @releaseDomain event. @releaseDomain events do not say that the guest has been removed. All watchers of this event must look at the states of all guests to find the guest that has been removed. When an @releaseDomain is generated due to a domain xenstored protocol violation, because the guest is still running, the watchers will not react. Later, when the guest is actually destroyed, xenstored will no longer have it stored in its internal data base, so no further @releaseDomain event will be sent. This can lead to a zombie domain; memory mappings of that guest's memory will not be removed, due to the missing event. This zombie domain will be cleaned up only after another domain is destroyed, as that will trigger another @releaseDomain event. If the device model of the guest that violated the Xenstore protocol is running in a stub-domain, a use-after-free case could happen in xenstored, after having removed the guest from its internal data base, possibly resulting in a crash of xenstored. A malicious guest can block resources of the host for a period after its own death. Guests with a stub domain device model can eventually crash xenstored, resulting in a more serious denial of service (the prevention of any further domain management operations). Only the C variant of Xenstore is affected; the Ocaml variant is not affected. Only HVM guests with a stubdom device model can cause a serious DoS.

Action-Not Available
Vendor-n/aDebian GNU/LinuxFedora ProjectXen Project
Product-xendebian_linuxfedoran/a
CWE ID-CWE-416
Use After Free
CVE-2016-9911
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.14% / 35.08%
||
7 Day CHG~0.00%
Published-23 Dec, 2016 | 22:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Quick Emulator (Qemu) built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.

Action-Not Available
Vendor-n/aQEMURed Hat, Inc.Debian GNU/Linux
Product-enterprise_linuxvirtualizationqemudebian_linuxopenstackn/a
CWE ID-CWE-772
Missing Release of Resource after Effective Lifetime
CVE-2016-9907
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.14% / 35.08%
||
7 Day CHG~0.00%
Published-23 Dec, 2016 | 22:00
Updated-12 Apr, 2025 | 10:46
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Quick Emulator (Qemu) built with the USB redirector usb-guest support is vulnerable to a memory leakage flaw. It could occur while destroying the USB redirector in 'usbredir_handle_destroy'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.

Action-Not Available
Vendor-n/aQEMURed Hat, Inc.Debian GNU/Linux
Product-enterprise_linuxvirtualizationqemudebian_linuxopenstackn/a
CWE ID-CWE-772
Missing Release of Resource after Effective Lifetime
CVE-2015-8568
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-6.5||MEDIUM
EPSS-0.06% / 19.05%
||
7 Day CHG~0.00%
Published-11 Apr, 2017 | 19:00
Updated-20 Apr, 2025 | 01:37
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 QEMU, when built with a VMWARE VMXNET3 paravirtual NIC emulator support, allows local guest users to cause a denial of service (host memory consumption) by trying to activate the vmxnet3 device repeatedly.

Action-Not Available
Vendor-n/aQEMUDebian GNU/Linux
Product-debian_linuxqemun/a
CWE ID-CWE-772
Missing Release of Resource after Effective Lifetime
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