Debian DSA-3420-1 : bind9 - security update

medium Nessus Plugin ID 87384

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Synopsis

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

Description

It was discovered that the BIND DNS server does not properly handle the parsing of incoming responses, allowing some records with an incorrect class to be accepted by BIND instead of being rejected as malformed. This can trigger a REQUIRE assertion failure when those records are subsequently cached. A remote attacker can exploit this flaw to cause a denial of service against servers performing recursive queries.

Solution

Upgrade the bind9 packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u8.

For the stable distribution (jessie), this problem has been fixed in version 1:9.9.5.dfsg-9+deb8u4.

Plugin Details

Severity: Medium

ID: 87384

File Name: debian_DSA-3420.nasl

Version: 2.10

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/16/2015

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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:8.0, 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: 12/15/2015

Reference Information

CVE: CVE-2015-8000

DSA: 3420

Detections

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