CVE-2007-5939 Information

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.

Reference

http://bugs.gentoo.org/show_bug.cgi?id=199207 http://marc.info/?l=full-disclosure&m=119704362903699&w=2 http://osvdb.org/44750 http://securitytracker.com/id?1019057 http://www.mandriva.com/security/advisories?name=MDKSA-2007:239 http://www.securityfocus.com/bid/26758