run-mailcap in the Debian mime-support package before 3.52-1+deb7u1 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in a filename.
https://exchange.xforce.ibmcloud.com/vulnerabilities/99570
http://www.securityfocus.com/bid/71797
http://www.openwall.com/lists/oss-security/2014/12/31/8
http://www.debian.org/security/2014/dsa-3114