ISC BIND Response Policy Zones RRSIG Query Assertion Failure DoS
Medium Nessus Plugin ID 53842
SynopsisThe remote name server may be affected by a denial of service vulnerability.
DescriptionAccording to its self-reported version number, the remote installation of BIND is potentially affected by a denial of service vulnerability.
This issue only affects BIND installations that use the RPZ feature configured for RRset replacement. When RPZ is being used, a query of type RRSIG for a name configured for RRset replacement will trigger an assertion failure and cause the name server process to exit.
Note that Nessus has only relied on the version itself and not attempted to determine whether the install actually uses the RPZ feature.
SolutionUpgrade to BIND 9.8.0-P1 or later.