Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gss-Ntlmssp Project | Gss-Ntlmssp | < 1.2.0 |
Related Weaknesses (CWE)
References
- https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facePatchThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfgThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facePatchThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfgThird Party Advisory
FAQ
What is CVE-2023-25565?
CVE-2023-25565 is a vulnerability with a CVSS score of 7.5 (HIGH). 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....
How severe is CVE-2023-25565?
CVE-2023-25565 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-25565?
Check the references section above for vendor advisories and patch information. Affected products include: Gss-Ntlmssp Project Gss-Ntlmssp.