CVE-2023-25567

Name	CVE-2023-25567
Description	GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The 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
	sid, trixie, bookworm	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-24pf-6prf-24ch
https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4 (v1.2.0)