CVE-2023-25565

Name	CVE-2023-25565
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1031369

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gss-ntlmssp (PTS)	bullseye	0.7.0-4	vulnerable
	bookworm, sid, trixie	1.2.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gss-ntlmssp	source	(unstable)	1.2.0-1			1031369

Notes

[bullseye] - gss-ntlmssp <no-dsa> (Minor issue)
[buster] - gss-ntlmssp <no-dsa> (Minor issue)
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg
https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64 (v1.2.0)