ISC.BIND.DNAME.answer.Response.Handling.DoS

Description

This indicates an attack attempt to exploit a Denial of Service vulnerability in ISC BIND.
The vulnerability is due to an assertion failure when the vulnerable application handles a dns response with malformed DNAME record. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.

Affected Products

ISC BIND 9.0.x -> 9.8.x
ISC BIND 9.9.0 -> 9.9.9-P3
ISC BIND 9.9.3-S1 -> 9.9.9-S5
ISC BIND 9.10.0 -> 9.10.4-P3
ISC BIND 9.11.0

Impact

Denial of Service: Remote attackers can crash vulnerable systems or services

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://kb.isc.org/article/AA-01434

References