The force printer in tcpdump before 4.7.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.
https://bugzilla.redhat.com/show_bug.cgi?id=1201798
http://www.securitytracker.com/id/1031937
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.debian.org/security/2015/dsa-3193
http://packetstormsecurity.com/files/130730/tcpdump-Denial-Of-Service-Code-Execution.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00084.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153834.html