Use After Free Affecting kernel package, versions <0:4.14.294-220.533.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-7446703
- published 13 Jul 2024
- disclosed 19 Oct 2022
Introduced: 19 Oct 2022
CVE-2022-3586 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.294-220.533.amzn2 or higher.
This issue was patched in ALAS2-2022-1852.
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.
A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.