wireshark is vulnerable to arbitrary code execution. The vulnerability exists as a heap-based buffer overflow flaw was found in Wireshark. If Wireshark opened a specially-crafted capture file, it could crash or, possibly, execute arbitrary code as the user running Wireshark.
secunia.com/advisories/43821
www.redhat.com/support/errata/RHSA-2011-0370.html
www.vupen.com/english/advisories/2011/0719
access.redhat.com/errata/RHSA-2011:0370
access.redhat.com/security/cve/CVE-2011-0024
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=671331