CVE-2024-35878 Affecting kernel-syms package, versions <6.4.0-150600.23.7.1
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-7717806
- published 20 Aug 2024
- disclosed 25 Jun 2024
Introduced: 25 Jun 2024
CVE-2024-35878 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.7.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
of: module: prevent NULL pointer dereference in vsnprintf()
In of_modalias(), we can get passed the str and len parameters which would cause a kernel oops in vsnprintf() since it only allows passing a NULL ptr when the length is also 0. Also, we need to filter out the negative values of the len parameter as these will result in a really huge buffer since snprintf() takes size_t parameter while ours is ssize_t...
Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool.
References
- https://www.suse.com/security/cve/CVE-2024-35878.html
- https://bugzilla.suse.com/1224671
- https://git.kernel.org/stable/c/544561dc56f7e69a053c25e11e6170f48bb97898
- https://git.kernel.org/stable/c/a1aa5390cc912934fee76ce80af5f940452fa987
- https://git.kernel.org/stable/c/e4a449368a2ce6d57a775d0ead27fc07f5a86e5b