wireshark is vulnerable to denial of service. 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?view=rev&revision=34018
lists.fedoraproject.org/pipermail/package-announce/2011-March/055364.html
lists.fedoraproject.org/pipermail/package-announce/2011-March/055650.html
lists.fedoraproject.org/pipermail/package-announce/2011-March/055664.html
secunia.com/advisories/43759
secunia.com/advisories/43821
secunia.com/advisories/44169
secunia.com/advisories/48947
www.kb.cert.org/vuls/id/215900
www.redhat.com/support/errata/RHSA-2011-0370.html
www.securityfocus.com/bid/46796
www.securitytracker.com/id?1025148
www.vupen.com/english/advisories/2011/0626
www.vupen.com/english/advisories/2011/0719
www.wireshark.org/docs/relnotes/wireshark-1.4.4.html
access.redhat.com/errata/RHSA-2011:0370
access.redhat.com/security/updates/classification/#moderate
bugs.wireshark.org/bugzilla/show_bug.cgi?id=5157
hermes.opensuse.org/messages/8086844
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16209