CVE-2023-3772

Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()

Description

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2023:6583 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:6901 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7077 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2024:0412 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0575 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-3772 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2218943 third party advisory issue tracking
http://www.openwall.com/lists/oss-security/2023/08/10/1
http://www.openwall.com/lists/oss-security/2023/08/10/3
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://www.debian.org/security/2023/dsa-5492

Frequently Asked Questions

What is the severity of CVE-2023-3772?
CVE-2023-3772 has been scored as a medium severity vulnerability.
How to fix CVE-2023-3772?
To fix CVE-2023-3772, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-3772 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-3772 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-3772?
CVE-2023-3772 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 9.
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