CVE-2023-25566

Summary

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.

Affected Software

Weaknesses

• CWE-401: CWE-401: Missing Release of Memory after Effective Lifetime

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74
• https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4
• https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74
• https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4
• https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0

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