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


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.6% (88th percentile)

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  • Snyk IDSNYK-RHEL8-GLIBCLANGPACKSI-4182280
  • 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 RHEL:8 glibc-langpack-si to version 0:2.28-164.el8 or higher.
This issue was patched in RHSA-2021:4358.

NVD Description

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