debdiff.pl in devscripts 2.10.x before 2.10.69 and 2.11.x before 2.11.4 allows remote attackers to obtain system information and execute arbitrary code via the file name in a (1) .dsc or (2) .changes file.
anonscm.debian.org/gitweb/?p=devscripts/devscripts.git%3Ba=commitdiff%3Bh=797ddc961532eb0aeb46153e3f28c8e9ea0500d2
secunia.com/advisories/47955
secunia.com/advisories/48039
ubuntu.com/usn/usn-1366-1
www.debian.org/security/2012/dsa-2409
www.osvdb.org/79319
www.securityfocus.com/bid/52029
exchange.xforce.ibmcloud.com/vulnerabilities/73215