ISC BIND Response Policy Zones (RPZ) DNAME / CNAME Parsing Remote DoS

high Nessus Plugin ID 55533
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VPR Score: 3.6

Synopsis

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

Description

According to its self-reported version number, the remote installation of BIND is potentially affected by a denial of service vulnerability. If an attacker sends a specially crafted request to a BIND server that has recursion enabled and Response Policy Zones (RPZ) configured, it may cause the name server process to crash.

Note that Nessus has only relied on the version itself and has not attempted to determine whether or not the install is actually affected.

Solution

Upgrade to BIND 9.8.0-P3 or later.

See Also

http://www.isc.org/software/bind/advisories/cve-2011-2465

Plugin Details

Severity: High

ID: 55533

File Name: bind9_980_p3.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 7/7/2011

Updated: 6/27/2018

Dependencies: bind_version.nasl

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

VPR Score: 3.6

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 7/5/2011

Vulnerability Publication Date: 7/5/2011

Reference Information

CVE: CVE-2011-2465

BID: 48565

CERT: 137968

Secunia: 45185