In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.
{
"extracted_events": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.0.12"
},
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.6"
}
],
"cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
"source": "CPE_FIELD"
}