Use After Free Affecting perf package, versions <0:4.14.173-137.228.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-AMZN2-PERF-1678798
  • 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:2 perf to version 0:4.14.173-137.228.amzn2 or higher.
This issue was patched in ALAS2-2020-1405.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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 Scores

version 3.1