Integer Overflow or Wraparound Affecting glibc package, versions <2.28-10+deb10u2


0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Availability High

    Threat Intelligence

    EPSS 1.03% (84th percentile)
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NVD
9.1 critical
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SUSE
5.1 medium
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Red Hat
9.1 critical

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  • Snyk ID SNYK-DEBIAN10-GLIBC-1315333
  • published 1 Jul 2021
  • disclosed 22 Jul 2021

How to fix?

Upgrade Debian:10 glibc to version 2.28-10+deb10u2 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 Debian. See How to fix? for Debian:10 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.