CVE-2021-35942

    Dashboard / Vulnerabilities / CVE-2021-35942

    CVE-2021-35942

    Published: 22 Jul 2021Last Modified: 28 Aug 2026

    Summary:

    Details: 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.

    References: https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c, https://sourceware.org/glibc/wiki/Security%20Exceptions, https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html, https://security.gentoo.org/glsa/202208-24, https://security.netapp.com/advisory/ntap-20210827-0005/, https://sourceware.org/bugzilla/show_bug.cgi?id=28011

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9ea3686266dca3f004ba874745a4087a89682617

    Affected versions

    changelog-ends-here

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-35942 | CVE-DB