NULL Pointer Dereference Affecting kernel-debug-uki-virt package, versions <0:5.14.0-284.25.1.el9_2
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Test your applications- Snyk ID SNYK-ORACLE9-KERNELDEBUGUKIVIRT-5819034
- published 8 Jun 2023
- disclosed 26 Apr 2023
Introduced: 26 Apr 2023
CVE-2023-0458 Open this link in a new tabHow to fix?
Upgrade Oracle:9 kernel-debug-uki-virt to version 0:5.14.0-284.25.1.el9_2 or higher.
This issue was patched in ELSA-2023-4377.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-uki-virt package and not the kernel-debug-uki-virt package as distributed by Oracle.
See How to fix? for Oracle:9 relevant fixed versions and status.
A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11
References
- https://linux.oracle.com/cve/CVE-2023-0458.html
- https://linux.oracle.com/errata/ELSA-2023-12375.html
- https://linux.oracle.com/errata/ELSA-2023-4377.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7
- https://github.com/torvalds/linux/commit/739790605705ddcf18f21782b9c99ad7d53a8c11
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html