From the ISC site: ------------------ Description: Urgent: this exploit is public. Please upgrade immediately. Receipt of a specially-crafted dynamic update message to a zone for which the server is the master may cause BIND 9 servers to exit. Testing indicates that the attack packet has to be formulated against a zone for which that machine is a master. Launching the attack against slave zones does not trigger the assert. This vulnerability affects all servers that are masters for one or more zones – it is not limited to those that are configured to allow dynamic updates. Access controls will not provide an effective workaround. dns_db_findrdataset() fails when the prerequisite section of the dynamic update message contains a record of type “ANY” and where at least one RRset for this FQDN exists on the server. db.c:659: REQUIRE(type != ((dns_rdatatype_t)dns_rdatatype_any)) failed exiting (due to assertion failure). Workarounds: None. Active exploits: An active remote exploit is in wide circulation at this time. Solution: Upgrade BIND to one of 9.4.3-P3, 9.5.1-P3 or 9.6.1-P1.
Dupe of #279508
*** This bug has been marked as a duplicate of bug 279508 ***
