ISC.BIND.Negative.Cache.RRSIG.RRsets.DoS

description-logoDescription

This indicates an attack attempt against a Denial of Service vulnerability in ISC BIND.
The vulnerability is due to an assertion error in the processing of negative responses containing large RRSIG RRsets. Successful exploitation requires that the attacker can directly query or trick an authorised client into querying the targeted caching resolvers.

affected-products-logoAffected Products

ISC BIND 9.4.x
ISC BIND 9.6.x
ISC BIND 9.7.x
ISC BIND 9.8.x

Impact logoImpact

Denial of Service: Remote attackers can crash vulnerable systems.

recomended-action-logoRecommended Actions

Upgrade to the latest version, available from the website.
http://www.isc.org/software/bind

Telemetry logoTelemetry

Coverage

IPS (Regular DB)
IPS (Extended DB)