Use After Free Affecting kernel-debug-debuginfo package, versions <0:4.18.0-477.21.1.el8_8
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Test your applications- Snyk ID SNYK-ROCKY8-KERNELDEBUGDEBUGINFO-5946408
- published 7 Oct 2023
- disclosed 12 Apr 2023
Introduced: 12 Apr 2023
CVE-2023-1829 Open this link in a new tabHow to fix?
Upgrade Rocky-Linux:8 kernel-debug-debuginfo to version 0:4.18.0-477.21.1.el8_8 or higher.
This issue was patched in RLSA-2023:4517.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-debuginfo package and not the kernel-debug-debuginfo package as distributed by Rocky-Linux.
See How to fix? for Rocky-Linux:8 relevant fixed versions and status.
A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1829
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://kernel.dance/#8c710f75256bb3cf05ac7b1672c82b92c43f3d28
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230601-0001/