UBUNTU-CVE-2023-25566

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    UBUNTU-CVE-2023-25566

    Published: 14 Feb 2023Last Modified: 16 Jul 2025
    Upstream:
    CVE-2023-25566

    Summary:

    Details: GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.

    References: https://ubuntu.com/security/CVE-2023-25566, https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74, https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4, https://www.cve.org/CVERecord?id=CVE-2023-25566

    Affected packages

    Package

    Name: gss-ntlmssp

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.2.0-1build3

    Affected versions

    1.2.0-1
    1.2.0-1build1
    1.2.0-1build2

    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-2023-25566 | CVE-DB