The (1) SMB and (2) SMB2 dissectors in Wireshark 0.9.0 through 1.2.4 allow remote attackers to cause a denial of service (crash) via a crafted packet that triggers a NULL pointer dereference, as demonstrated by fuzz-2009-12-07-11141.pcap.
osvdb.org/61178
secunia.com/advisories/37842
secunia.com/advisories/37916
www.debian.org/security/2009/dsa-1983
www.mandriva.com/security/advisories?name=MDVSA-2010:031
www.securityfocus.com/bid/37407
www.securitytracker.com/id?1023374
www.vupen.com/english/advisories/2009/3596
www.wireshark.org/security/wnpa-sec-2009-09.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=4301
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9564
www.redhat.com/archives/fedora-package-announce/2009-December/msg01248.html