USN-8043-1

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    USN-8043-1

    Published: 16 Feb 2026Last Modified: 27 Apr 2026

    Summary: gnutls28 vulnerabilities

    Details: Tim Scheckenbach discovered that GnuTLS incorrectly handled malicious certificates containing a large number of name constraints and subject alternative names. A remote attacker could possibly use this issue to cause GnuTLS to consume resources, resulting in a denial of service. (CVE-2025-14831) Luigino Camastra discovered that GnuTLS incorrectly handled certain PKCS11 token labels. A remote attacker could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service. (CVE-2025-9820)

    References: https://ubuntu.com/security/notices/USN-8043-1, https://ubuntu.com/security/CVE-2025-9820, https://ubuntu.com/security/CVE-2025-14831

    Affected packages

    Package

    Name: gnutls28

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=jammy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.7.3-4ubuntu1.8

    Affected versions

    3.7.1-5ubuntu1
    3.7.2-2ubuntu1
    3.7.2-4ubuntu1
    3.7.2-5ubuntu1
    3.7.3-4ubuntu1
    3.7.3-4ubuntu1.1
    3.7.3-4ubuntu1.2
    3.7.3-4ubuntu1.3
    3.7.3-4ubuntu1.4
    3.7.3-4ubuntu1.5
    3.7.3-4ubuntu1.6
    3.7.3-4ubuntu1.7

    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-8043-1 | CVE-DB