Use After Free Affecting python-perf-debuginfo package, versions <0:4.14.294-220.533.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-AMZN2-PYTHONPERFDEBUGINFO-7446700
  • published13 Jul 2024
  • 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 Amazon-Linux:2 python-perf-debuginfo 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 python-perf-debuginfo package and not the python-perf-debuginfo 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.

CVSS Scores

version 3.1