Debian DSA-2244-1 : bind9 - incorrect boundary condition

medium Nessus Plugin ID 55032

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Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that BIND, an implementation of the DNS protocol, does not correctly process certain large RRSIG record sets in DNSSEC responses. The resulting assertion failure causes the name server process to crash, making name resolution unavailable. (CVE-2011-1910 )

In addition, this update fixes handling of certain signed/unsigned zone combinations when a DLV service is used. Previously, data from certain affected zones could become unavailable from the resolver.

Solution

Upgrade the bind9 packages.

For the oldstable distribution (lenny), this problem has been fixed in version 1:9.6.ESV.R4+dfsg-0+lenny2.

For the stable distribution (squeeze), this problem has been fixed in version 1:9.7.3.dfsg-1~squeeze2.

Plugin Details

Severity: Medium

ID: 55032

File Name: debian_DSA-2244.nasl

Version: 1.11

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 6/10/2011

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bind9, cpe:/o:debian:debian_linux:5.0, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 5/27/2011

Reference Information

CVE: CVE-2011-1910

BID: 48007

DSA: 2244

Detections

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