ISC BIND Response Policy Zones RRSIG Query Assertion Failure DoS

medium Nessus Plugin ID 53842
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VPR Score: 5.1


The remote name server may be affected by a denial of service vulnerability.


According 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.


Upgrade to BIND 9.8.0-P1 or later.

See Also

Plugin Details

Severity: Medium

ID: 53842

File Name: bind9_980_p1.nasl

Version: 1.8

Type: remote

Family: DNS

Published: 5/9/2011

Updated: 6/27/2018

Dependencies: bind_version.nasl

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

VPR Score: 5.1

CVSS v2.0

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*

Required KB Items: Settings/ParanoidReport, bind/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/5/2011

Vulnerability Publication Date: 5/5/2011

Exploitable With

Core Impact

Reference Information

CVE: CVE-2011-1907

BID: 47734

Secunia: 44416