This indicates an attack attempt to exploit a Denial of Service vulnerability in ISC BIND.
The vulnerability is due to an error when vulnerable module handles a crafted DNS query. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.
ISC BIND 9.1.0 -> 9.8.x
ISC BIND 9.9.0->9.9.7-P1
ISC BIND 9.10.0->9.10.2-P2
Denial of Service: Remote attackers can crash vulnerable systems or services
Apply the most recent upgrade or patch from the vendor.