The dissect_tds7_colmetadata_token function in epan/dissectors/packet-tds.c in the TDS dissector in Wireshark 2.0.x before 2.0.1 does not validate the number of columns, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) via a crafted packet.
https://security.gentoo.org/glsa/201604-05
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11846
http://www.wireshark.org/security/wnpa-sec-2015-58.html