Out-of-Bounds Affecting kernel-doc package, versions <0:4.18.0-553.8.1.el8_10
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Test your applications- Snyk ID SNYK-ROCKY8-KERNELDOC-7453820
- published 16 Jul 2024
- disclosed 23 Feb 2024
Introduced: 23 Feb 2024
CVE-2023-52464 Open this link in a new tabHow to fix?
Upgrade Rocky-Linux:8 kernel-doc to version 0:4.18.0-553.8.1.el8_10 or higher.
This issue was patched in RLSA-2024:4211.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Rocky-Linux.
See How to fix? for Rocky-Linux:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
EDAC/thunderx: Fix possible out-of-bounds string access
Enabling -Wstringop-overflow globally exposes a warning for a common bug in the usage of strncat():
drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr': drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=] 1136 | strncat(msg, other, OCX_MESSAGE_SIZE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... 1145 | strncat(msg, other, OCX_MESSAGE_SIZE); ... 1150 | strncat(msg, other, OCX_MESSAGE_SIZE);
...
Apparently the author of this driver expected strncat() to behave the way that strlcat() does, which uses the size of the destination buffer as its third argument rather than the length of the source buffer. The result is that there is no check on the size of the allocated buffer.
Change it to strlcat().
[ bp: Trim compiler output, fixup commit message. ]
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52464
- https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5
- https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8
- https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6
- https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405a
- https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21
- https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601
- https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398
- https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html