The dissect_atn_cpdlc_heur function in asn1/atn-cpdlc/packet-atn-cpdlc-template.c in the ATN-CPDLC dissector in Wireshark 1.12.x before 1.12.4 does not properly follow the TRY/ENDTRY code requirements, which allows remote attackers to cause a denial of service (stack memory corruption and application crash) via a crafted packet.
https://security.gentoo.org/glsa/201510-03
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9952
http://www.wireshark.org/security/wnpa-sec-2015-06.html
http://www.securitytracker.com/id/1031858
http://www.securityfocus.com/bid/72940
http://lists.opensuse.org/opensuse-updates/2015-03/msg00038.html