Vulnerability Description
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.
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/8660fb16474054e692a596e9c79670cd4d3PatchThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3PatchThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74Third Party Advisory
FAQ
What is CVE-2023-25566?
CVE-2023-25566 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, a memory leak can be triggered when parsing usernames which can trigger a denial-of...
How severe is CVE-2023-25566?
CVE-2023-25566 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-2023-25566?
Check the references section above for vendor advisories and patch information. Affected products include: Gss-Ntlmssp Project Gss-Ntlmssp.