ISC BIND 9 Response Policy Zones (RPZ) DNAME / CNAME Parsing Remote DoS

Medium Nessus Network Monitor Plugin ID 5981

Synopsis

The remote DNS server is vulnerable to a denial of service attack.

Description

The remote host is running Bind, a popular name server.

Versions of BIND 9.8 earlier than 9.8.0-P3 are 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.

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: Medium

ID: 5981

File Name: 5981.prm

Family: DNS Servers

Published: 2011/07/07

Modified: 2016/05/13

Dependencies: 1003

Nessus ID: 55533

Risk Information

Risk Factor: Medium

CVSSv2

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

CVSSv3

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS3#E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind:9.8.0

Patch Publication Date: 2011/07/05

Vulnerability Publication Date: 2011/07/05

Reference Information

CVE: CVE-2011-2465

BID: 48565

OSVDB: 73604