NULL Pointer Dereference Affecting kernel-rt-devel package, versions <0:4.18.0-513.5.1.rt7.307.el8_9
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEVEL-5806740
- published 26 Jul 2023
- disclosed 21 Jul 2023
Introduced: 21 Jul 2023
CVE-2023-3772 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-devel to version 0:4.18.0-513.5.1.rt7.307.el8_9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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://access.redhat.com/errata/RHSA-2023:6901
- https://bugzilla.redhat.com/show_bug.cgi?id=2218943
- 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