Use After Free Affecting linux-5.10 package, versions <5.10.149-2~deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-DEBIAN10-LINUX510-3091149
  • published19 Oct 2022
  • disclosed19 Oct 2022

Introduced: 19 Oct 2022

CVE-2022-3586  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.149-2~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 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.

CVSS Scores

version 3.1