DescriptionGSS-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.
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, bullseye0.7.0-4fixed
sid, trixie, bookworm1.2.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gss-ntlmsspsourcebuster(not affected)
gss-ntlmsspsourcebullseye(not affected)


[bullseye] - gss-ntlmssp <not-affected> (Vulnerable code not present)
[buster] - gss-ntlmssp <not-affected> (Vulnerable code not present) (v1.2.0)

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