Off-by-one Error Affecting kernel-core package, versions <0:5.14.0-284.71.1.el9_2
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-7395612
- published 26 Jun 2024
- disclosed 30 May 2024
Introduced: 30 May 2024
CVE-2024-36957 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-284.71.1.el9_2 or higher.
This issue was patched in RHSA-2024:4108.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: avoid off-by-one read from userspace
We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.
References
- https://access.redhat.com/security/cve/CVE-2024-36957
- https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7
- https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67
- https://git.kernel.org/stable/c/bcdac70adceb44373da204c3c297f2a98e13216e
- https://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402f
- https://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878
- https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html