USN-5013-2

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    USN-5013-2

    Published: 20 Jul 2021Last Modified: 25 Jun 2026

    Summary: systemd vulnerabilities

    Details: USN-5013-1 fixed several vulnerabilities in systemd. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that systemd incorrectly handled certain mount paths. A local attacker could possibly use this issue to cause systemd to crash, resulting in a denial of service. (CVE-2021-33910) Mitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW packets. A remote attacker could possibly use this issue to reconfigure servers. (CVE-2020-13529)

    References: https://ubuntu.com/security/notices/USN-5013-2, https://ubuntu.com/security/CVE-2020-13529, https://ubuntu.com/security/CVE-2021-33910

    Affected packages

    Package

    Name: systemd

    Purl: pkg:deb/ubuntu/systemd?arch=source&distro=esm-infra%2Fxenial

    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
    USN-5013-2 | CVE-DB