Out-of-bounds Write Affecting kernel-bootwrapper package, versions <0:3.10.0-1160.105.1.el7
Threat Intelligence
EPSS
0.05% (20th
percentile)
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-5491833
- published 3 May 2023
- disclosed 13 Apr 2023
Introduced: 13 Apr 2023
CVE-2023-31436 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-1160.105.1.el7 or higher.
This issue was patched in RHSA-2023:7423.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
References
- https://access.redhat.com/security/cve/CVE-2023-31436
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13
- https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d
- https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
- https://security.netapp.com/advisory/ntap-20230609-0001/
- https://www.debian.org/security/2023/dsa-5402
- https://www.spinics.net/lists/stable-commits/msg294885.html
CVSS Scores
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