LOW
Wireshark 1.4.x before 1.4.13 and 1.6.x before 1.6.8 on the SPARC and Itanium platforms does not properly perform data alignment for a certain structure member, which allows remote attackers to cause a denial of service (application crash) via a (1) ICMP or (2) ICMPv6 Echo Request packet.
http://anonsvn.wireshark.org/viewvc?view=revision&revision=42393
http://secunia.com/advisories/49226
http://www.mandriva.com/security/advisories?name=MDVSA-2012:015
http://www.mandriva.com/security/advisories?name=MDVSA-2012:042
http://www.mandriva.com/security/advisories?name=MDVSA-2012:080
http://www.securityfocus.com/bid/53653
http://www.securitytracker.com/id?1027094