Integer Overflow or Wraparound Affecting glibc-langpack-cv package, versions <0:2.26-53.amzn2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.09% (85th percentile)

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  • Snyk IDSNYK-AMZN2-GLIBCLANGPACKCV-1702775
  • published27 Sept 2021
  • disclosed22 Jul 2021

Introduced: 22 Jul 2021

CVE-2021-35942  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-cv to version 0:2.26-53.amzn2 or higher.
This issue was patched in ALAS2-2021-1703.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-cv package and not the glibc-langpack-cv package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.

CVSS Scores

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