Integer Overflow or Wraparound Affecting glibc package, versions <0:2.28-164.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
1.6% (88th percentile)

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  • Snyk IDSNYK-CENTOS8-GLIBC-2139725
  • published26 Jul 2021
  • disclosed30 Jun 2021

Introduced: 30 Jun 2021

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

How to fix?

Upgrade Centos:8 glibc to version 0:2.28-164.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Centos. See How to fix? for Centos:8 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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