NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-core (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL9-KERNELCORE-9385585
- published11 Mar 2025
- disclosed21 Jul 2023
Introduced: 21 Jul 2023
CVE-2023-3772 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
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.
References
- https://access.redhat.com/security/cve/CVE-2023-3772
- 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
- https://access.redhat.com/errata/RHSA-2023:6583
- https://bugzilla.redhat.com/show_bug.cgi?id=2218943