wireshark is vulnerable to denial of service (DoS). The vulnerability exists as wireshark could crash or stop responding if it read a malformed packet off a network, or opened a malicious dump file.
anonsvn.wireshark.org/viewvc/trunk/wiretap/erf.c?view=markup&pathrev=29364
secunia.com/advisories/37409
secunia.com/advisories/37477
www.debian.org/security/2009/dsa-1942
www.kb.cert.org/vuls/id/676492
www.redhat.com/security/updates/classification/#moderate
www.wireshark.org/docs/relnotes/wireshark-1.2.2.html
www.wireshark.org/security/wnpa-sec-2009-05.html
www.wireshark.org/security/wnpa-sec-2009-08.html
www.wireshark.org/security/wnpa-sec-2010-01.html
access.redhat.com/errata/RHSA-2010:0360
bugs.wireshark.org/bugzilla/show_bug.cgi?id=3849
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5979
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9945