UBUNTU-CVE-2021-35942

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    UBUNTU-CVE-2021-35942

    Published: 22 Jul 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-35942

    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://ubuntu.com/security/CVE-2021-35942, https://ubuntu.com/security/notices/USN-5310-1, https://ubuntu.com/security/notices/USN-5699-1, https://www.cve.org/CVERecord?id=CVE-2021-35942

    Affected packages

    Package

    Name: eglibc

    Purl: pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.17-93ubuntu4

    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
    UBUNTU-CVE-2021-35942 | CVE-DB