The get_value function in epan/dissectors/packet-btatt.c in the Bluetooth Attribute (aka BT ATT) dissector in Wireshark 2.0.x before 2.0.1 uses an incorrect integer data type, which allows remote attackers to cause a denial of service (invalid write operation and application crash) via a crafted packet.
https://security.gentoo.org/glsa/201604-05
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11817
http://www.wireshark.org/security/wnpa-sec-2015-53.html