Use After Free Affecting perf-debuginfo package, versions <0:4.14.173-106.229.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.66% (47th percentile)

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  • Snyk IDSNYK-AMZN201803-PERFDEBUGINFO-1721615
  • published27 Sept 2021
  • disclosed6 Feb 2020

Introduced: 6 Feb 2020

CVE-2020-8648  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf-debuginfo to version 0:4.14.173-106.229.amzn1 or higher.
This issue was patched in ALAS-2020-1360.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.

CVSS Base Scores

version 3.1