epan/dissectors/packet-http2.c in the HTTP/2 dissector in Wireshark 2.0.x before 2.0.2 does not limit the amount of header data, which allows remote attackers to cause a denial of service (memory consumption or application crash) via a crafted packet.
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.