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Debian DSA-3094-1 : bind9 - security update

high Nessus Plugin ID 79808

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Synopsis

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

Description

It was discovered that BIND, a DNS server, is prone to a denial of service vulnerability.

By making use of maliciously-constructed zones or a rogue server, an attacker can exploit an oversight in the code BIND 9 uses to follow delegations in the Domain Name Service, causing BIND to issue unlimited queries in an attempt to follow the delegation.

This can lead to resource exhaustion and denial of service (up to and including termination of the named server process.)

Solution

Upgrade the bind9 packages.

For the stable distribution (wheezy), this problem has been fixed in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u3.

For the upcoming stable distribution (jessie), this problem will be fixed soon.

See Also

https://packages.debian.org/source/wheezy/bind9

https://www.debian.org/security/2014/dsa-3094

Plugin Details

Severity: High

ID: 79808

File Name: debian_DSA-3094.nasl

Version: 1.13

Type: local

Agent: unix

Published: 12/9/2014

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bind9, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/8/2014

Reference Information

CVE: CVE-2014-8500

BID: 71590

DSA: 3094