The dissect_rtcp_app function in epan/dissectors/packet-rtcp.c in the RTCP dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15894
http://www.wireshark.org/security/wnpa-sec-2012-38.html
http://rhn.redhat.com/errata/RHSA-2014-0341.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00042.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00022.html
http://anonsvn.wireshark.org/viewvc?view=revision&revision=45717