CVE-2022-3586

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory github.com Third-Party Advisory debian.org Third-Party Advisory zerodayinitiative.com
Affected: n/a Linux Kernel
Published at:
Updated at:

References

Link Tags
https://github.com/torvalds/linux/commit/9efd23297cca third party advisory patch
https://www.zerodayinitiative.com/advisories/upcoming/ vdb entry third party advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-3586?
CVE-2022-3586 has been scored as a medium severity vulnerability.
How to fix CVE-2022-3586?
To fix CVE-2022-3586, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-3586 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-3586 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-3586?
CVE-2022-3586 affects n/a Linux Kernel.
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