CVE-2005-2180

gen-index in GNATS 4.0, 4.1.0, and possibly earlier versions, when installed setuid, does not properly check files passed to the -o argument and opens the file with write access, which allows local users to overwrite arbitrary files.

CVE-2004-0623

Format string vulnerability in misc.c in GNU GNATS 4.00 may allow remote attackers to execute arbitrary code via format string specifiers in a string that gets logged by syslog.