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Vulnerability Details :

CVE-2023-42754

Summary
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
Published At-05 Oct, 2023 | 18:25
Updated At-23 Jul, 2025 | 18:38
Rejected At-
Credits

Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

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:redhat
Assigner Org ID:53f830b8-0a3f-465b-8143-3b8a9948e749
Published At:05 Oct, 2023 | 18:25
Updated At:23 Jul, 2025 | 18:38
Rejected At:
▼CVE Numbering Authority (CNA)
Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

Affected Products
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/a:redhat:enterprise_linux:8::nfv
  • cpe:/a:redhat:enterprise_linux:8::realtime
Default Status
affected
Versions
Unaffected
  • From 0:4.18.0-553.rt7.342.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:8::baseos
  • cpe:/a:redhat:enterprise_linux:8::crb
Default Status
affected
Versions
Unaffected
  • From 0:4.18.0-553.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/a:redhat:enterprise_linux:9::nfv
  • cpe:/a:redhat:enterprise_linux:9::realtime
  • cpe:/a:redhat:enterprise_linux:9::crb
  • cpe:/o:redhat:enterprise_linux:9::baseos
  • cpe:/a:redhat:enterprise_linux:9::appstream
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-427.13.1.el9_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/a:redhat:enterprise_linux:9::nfv
  • cpe:/a:redhat:enterprise_linux:9::realtime
  • cpe:/a:redhat:enterprise_linux:9::crb
  • cpe:/o:redhat:enterprise_linux:9::baseos
  • cpe:/a:redhat:enterprise_linux:9::appstream
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-427.13.1.el9_4 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
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:9
Default Status
affected
Problem Types
TypeCWE IDDescription
CWECWE-476NULL Pointer Dereference
Type: CWE
CWE ID: CWE-476
Description: NULL Pointer Dereference
Metrics
VersionBase scoreBase severityVector
3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.2023-09-13 00:00:00
Made public.2023-09-17 00:00:00
Event: Reported to Red Hat.
Date: 2023-09-13 00:00:00
Event: Made public.
Date: 2023-09-17 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://access.redhat.com/errata/RHSA-2024:2394
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2950
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3138
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-42754
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2239845
issue-tracking
x_refsource_REDHAT
https://seclists.org/oss-sec/2023/q4/14
N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2394
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2950
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3138
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-42754
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2239845
Resource:
issue-tracking
x_refsource_REDHAT
Hyperlink: https://seclists.org/oss-sec/2023/q4/14
Resource: N/A
▼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
https://access.redhat.com/errata/RHSA-2024:2394
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:2950
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:3138
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/security/cve/CVE-2023-42754
vdb-entry
x_refsource_REDHAT
x_transferred
https://bugzilla.redhat.com/show_bug.cgi?id=2239845
issue-tracking
x_refsource_REDHAT
x_transferred
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
x_transferred
https://seclists.org/oss-sec/2023/q4/14
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2394
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2950
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3138
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-42754
Resource:
vdb-entry
x_refsource_REDHAT
x_transferred
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2239845
Resource:
issue-tracking
x_refsource_REDHAT
x_transferred
Hyperlink: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
Resource:
x_transferred
Hyperlink: https://seclists.org/oss-sec/2023/q4/14
Resource:
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:secalert@redhat.com
Published At:05 Oct, 2023 | 19:15
Updated At:13 Sep, 2024 | 19:15

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

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
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Secondary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CPE Matches
Linux Kernel Organization, Inc
linux
>>linux_kernel>>Versions before 6.6(exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.6
cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
Linux Kernel Organization, Inc
linux
>>linux_kernel>>6.6
cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>8.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Red Hat, Inc.
redhat
>>enterprise_linux>>9.0
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>37
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>38
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>39
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-476Primarynvd@nist.gov
CWE-476Secondarysecalert@redhat.com
CWE ID: CWE-476
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-476
Type: Secondary
Source: secalert@redhat.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://access.redhat.com/errata/RHSA-2024:2394secalert@redhat.com
N/A
https://access.redhat.com/errata/RHSA-2024:2950secalert@redhat.com
N/A
https://access.redhat.com/errata/RHSA-2024:3138secalert@redhat.com
N/A
https://access.redhat.com/security/cve/CVE-2023-42754secalert@redhat.com
Patch
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2239845secalert@redhat.com
Issue Tracking
Patch
Third Party Advisory
https://seclists.org/oss-sec/2023/q4/14secalert@redhat.com
Exploit
Mailing List
Patch
Third Party Advisory
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2394
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2950
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3138
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-42754
Source: secalert@redhat.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2239845
Source: secalert@redhat.com
Resource:
Issue Tracking
Patch
Third Party Advisory
Hyperlink: https://seclists.org/oss-sec/2023/q4/14
Source: secalert@redhat.com
Resource:
Exploit
Mailing List
Patch
Third Party Advisory

Change History

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