UBUNTU-CVE-2025-14831

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    UBUNTU-CVE-2025-14831

    Published: 9 Feb 2026Last Modified: 6 Jul 2026
    Upstream:
    CVE-2025-14831

    Summary:

    Details: A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).

    References: https://ubuntu.com/security/CVE-2025-14831, https://www.cve.org/CVERecord?id=CVE-2025-14831, https://access.redhat.com/security/cve/CVE-2025-14831, https://ubuntu.com/security/notices/USN-8043-1, https://ubuntu.com/security/notices/USN-8502-1

    Affected packages

    Package

    Name: gnutls28

    Purl: pkg:deb/ubuntu/gnutls28?arch=source&distro=esm-infra%2Fbionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.5.18-1ubuntu1.6+esm3

    Affected versions

    3.5.8-6ubuntu3
    3.5.17-1ubuntu1
    3.5.17-1ubuntu3
    3.5.18-1ubuntu1
    3.5.18-1ubuntu1.1
    3.5.18-1ubuntu1.2
    3.5.18-1ubuntu1.3
    3.5.18-1ubuntu1.4
    3.5.18-1ubuntu1.5
    3.5.18-1ubuntu1.6
    3.5.18-1ubuntu1.6+esm1
    3.5.18-1ubuntu1.6+esm2

    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-2025-14831 | CVE-DB