epan/dissectors/packet-gtpv2.c in the GTPv2 dissector in Wireshark 1.8.x before 1.8.7 calls incorrect functions in certain contexts related to ciphers, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.