UBUNTU-CVE-2021-33910

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-33910

    UBUNTU-CVE-2021-33910

    Published: 20 Jul 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-33910

    Summary:

    Details: basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.

    References: https://ubuntu.com/security/CVE-2021-33910, https://ubuntu.com/security/notices/USN-5013-1, https://ubuntu.com/security/notices/USN-5013-2, https://www.cve.org/CVERecord?id=CVE-2021-33910

    Affected packages

    Package

    Name: systemd

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -229-4ubuntu21.31+esm1

    Affected versions

    225-1ubuntu9

    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-2021-33910 | CVE-DB