Sophos Anti-Virus for Unix/Linux before 2.48.0 allows remote attackers to cause a denial of service (infinite loop) via a malformed BZip file that results in the creation of multiple Engine temporary files (aka a "BZip bomb").
http://www.vupen.com/english/advisories/2007/2972
http://www.sophos.com/support/knowledgebase/article/28407.html
http://www.securityfocus.com/bid/25428
http://www.securityfocus.com/archive/1/477727/100/0/threaded
http://www.nruns.com/security_advisory_sophos_gzip_infinite_loop_dos.php
http://securitytracker.com/id?1018608