Stack-based buffer overflow in utp.cpp in libutp, as used in Transmission before 2.74 and possibly other products, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted "micro transport protocol packets."
https://trac.transmissionbt.com/ticket/5002
https://bugzilla.redhat.com/show_bug.cgi?id=909934
http://www.ubuntu.com/usn/USN-1747-1
http://www.openwall.com/lists/oss-security/2013/02/13/1
http://lists.opensuse.org/opensuse-updates/2013-03/msg00064.html