Directory traversal vulnerability in libtransmission/metainfo.c in Transmission 1.22, 1.34, 1.75, and 1.76 allows remote attackers to overwrite arbitrary files via a .. (dot dot) in a pathname within a .torrent file.
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00009.html
http://secunia.com/advisories/37993
http://secunia.com/advisories/38005
http://security.debian.org/pool/updates/main/t/transmission/transmission_1.22-1+lenny2.diff.gz
http://trac.transmissionbt.com/changeset/9829/
http://trac.transmissionbt.com/wiki/Changes#version-1.77
http://www.debian.org/security/2010/dsa-1967
http://www.mail-archive.com/[email protected]/msg264483.html
http://www.openwall.com/lists/oss-security/2010/01/06/2
http://www.openwall.com/lists/oss-security/2010/01/06/4
http://www.vupen.com/english/advisories/2010/0071