Out-of-bounds Read Affecting kernel package, versions <0:4.14.313-235.533.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-5496498
- published 4 May 2023
- disclosed 12 Jan 2023
Introduced: 12 Jan 2023
CVE-2023-23454 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.313-235.533.amzn2 or higher.
This issue was patched in ALAS2-2023-2027.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23454
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12
- https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
- https://www.debian.org/security/2023/dsa-5324
- https://www.openwall.com/lists/oss-security/2023/01/10/1
- https://www.openwall.com/lists/oss-security/2023/01/10/4
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html