Improper Update of Reference Count Affecting kernel package, versions <0:4.14.290-217.505.amzn2
Threat Intelligence
EPSS
0.05% (16th
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-2988082
- published 20 Aug 2022
- disclosed 27 Jul 2022
Introduced: 27 Jul 2022
CVE-2022-36879 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.290-217.505.amzn2 or higher.
This issue was patched in ALAS2-2022-1833.
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.
An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36879
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901
- https://github.com/torvalds/linux/commit/f85daf0e725358be78dfd208dea5fd665d8cb901
- https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://security.netapp.com/advisory/ntap-20220901-0007/
- https://www.debian.org/security/2022/dsa-5207
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