CVE-2023-25567

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    CVE-2023-25567

    Published: 14 Feb 2023Last Modified: 28 Oct 2026

    Summary: GSS-NTLMSSP vulnerable to out-of-bounds read when decoding target information

    Details: GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.

    References: https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25567.json, https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-24pf-6prf-24ch, https://nvd.nist.gov/vuln/detail/CVE-2023-25567, https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3c3077e2a24b47db1b4c459fb3173ba7f75b9b44

    Affected versions

    v1.1.0

    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
    CVE-2023-25567 | CVE-DB