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Integer Overflow or Wraparound Affecting glibc package, versions *

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Availability High

    Threat Intelligence

    EPSS 1.14% (85th 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-DEBIAN9-GLIBC-1315336
  • published 1 Jul 2021
  • disclosed 22 Jul 2021
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Introduced: 1 Jul 2021

CVE-2021-35942 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

There is no fixed version for Debian:9 glibc.

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:9 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.