PSI Jabber client before 0.12.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a file transfer request with a negative value in a SOCKS5 option, which bypasses a signed integer check and triggers an integer overflow and a heap-based buffer overflow.
bugs.gentoo.org/show_bug.cgi?id=252830
jolmos.blogspot.com/2008/12/psi-remote-integer-overflow.html
lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
secunia.com/advisories/33311
secunia.com/advisories/34119
secunia.com/advisories/34259
secunia.com/advisories/34301
sourceforge.net/project/shownotes.php?release_id=658912
www.debian.org/security/2009/dsa-1741
www.openwall.com/lists/oss-security/2009/02/25/5
www.securityfocus.com/archive/1/499563
www.exploit-db.com/exploits/7555
www.redhat.com/archives/fedora-package-announce/2009-March/msg00071.html
www.redhat.com/archives/fedora-package-announce/2009-March/msg00080.html