Out-of-bounds Write Affecting kernel-debug package, versions <0:4.18.0-372.87.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUG-6200344
- published 26 Jan 2024
- disclosed 21 Jul 2023
Introduced: 21 Jul 2023
CVE-2023-3611 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug to version 0:4.18.0-372.87.1.el8_6 or higher.
This issue was patched in RHSA-2024:0412.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.
We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
References
- https://access.redhat.com/security/cve/CVE-2023-3611
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64
- https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://security.netapp.com/advisory/ntap-20230908-0002/
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492