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CVE-2023-25565 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64	CVE	PatchThird Party Advisory
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0	CVE	Third Party Advisory
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg	CVE	Third Party Advisory
https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64	[email protected]	PatchThird Party Advisory
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0	[email protected]	Third Party Advisory
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg	[email protected]	Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-763	Release of Invalid Pointer or Reference	[email protected]
CWE-590	Free of Memory not on the Heap	[email protected]

Affected Products

Product	Versions
gss-ntlmssp project gss-ntlmssp	< 1.2.0
CPE cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 22, 2023	Initial Analysis	[email protected]