CVE-2007-5939

Name	CVE-2007-5939
Description	The gss_userok function in appl/ftp/ftpd/gss_userok.c in Heimdal 0.7.2 does not allocate memory for the ticketfile pointer before calling free, which allows remote attackers to have an unknown impact via an invalid username. NOTE: the vulnerability was originally reported for ftpd.c, but this is incorrect.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
heimdal (PTS)	bullseye (security), bullseye	7.7.0+dfsg-2+deb11u3	fixed
	bookworm	7.8.git20221117.28daf24+dfsg-2	fixed
	forky, sid, trixie	7.8.git20221117.28daf24+dfsg-9	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
heimdal	source	(unstable)	(not affected)

- heimdal <not-affected> (vulnerable code not present, ticketfile is just unlinked which is ok)