DescriptionGSS-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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1031369

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gss-ntlmssp (PTS)buster, bullseye0.7.0-4vulnerable
sid, trixie, bookworm1.2.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bullseye] - gss-ntlmssp <no-dsa> (Minor issue)
[buster] - gss-ntlmssp <no-dsa> (Minor issue) (v1.2.0)

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