The FSG unpacker (fsg.c) in Clam AntiVirus (ClamAV) 0.80 through 0.87 allows remote attackers to cause "memory corruption" and execute arbitrary code via a crafted FSG 1.33 file.
http://www.zerodayinitiative.com/advisories/ZDI-05-002.html
http://www.vupen.com/english/advisories/2005/2294
http://www.securityfocus.com/bid/15318
http://www.mandriva.com/security/advisories?name=MDKSA-2005:205
http://www.gentoo.org/security/en/glsa/glsa-200511-04.xml
http://www.debian.org/security/2005/dsa-887
http://sourceforge.net/project/shownotes.php?release_id=368319
http://securitytracker.com/id?1015154
http://securityreason.com/securityalert/146
http://secunia.com/advisories/17559
http://secunia.com/advisories/17501
http://secunia.com/advisories/17451
http://secunia.com/advisories/17448
http://secunia.com/advisories/17434
http://secunia.com/advisories/17184
http://archives.neohapsis.com/archives/bugtraq/2005-11/0041.html