CVE-2023-25566

Name	CVE-2023-25566
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, 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)	buster	0.7.0-4	vulnerable
	bullseye	0.7.0-4	fixed
	bookworm, sid	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	bullseye	(not affected)
gss-ntlmssp	source	(unstable)	1.2.0-1			1031369

Notes

[bullseye] - gss-ntlmssp <not-affected> (Vulnerable code not present)
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74
https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 (v1.2.0)