UBUNTU-CVE-2023-25565

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    UBUNTU-CVE-2023-25565

    Published: 14 Feb 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-25565
    Aliases:
    USN-7588-1

    Summary:

    Details: GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.

    References: https://ubuntu.com/security/CVE-2023-25565, https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg, https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64, https://www.cve.org/CVERecord?id=CVE-2023-25565, https://ubuntu.com/security/notices/USN-7588-1

    Affected packages

    Package

    Name: gss-ntlmssp

    Purl: pkg:deb/ubuntu/[email protected]~ubuntu0.16.04.1+esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.7.0-3~ubuntu0.16.04.1+esm1

    Affected versions

    0.6.0-1

    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-2023-25565 | CVE-DB