The ascend_seek function in wiretap/ascendtext.c in the Ascend file parser in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 does not ensure the presence of a '\0' character at the end of a date string, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted file.
https://security.gentoo.org/glsa/201604-05
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11794
http://www.wireshark.org/security/wnpa-sec-2015-47.html
http://www.securitytracker.com/id/1034551
http://www.securityfocus.com/bid/79382
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html