Debian DLA-370-1 : bind9 security update

Medium Nessus Plugin ID 87427

Synopsis

The remote Debian host is missing a security 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.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2015/12/msg00012.html

https://packages.debian.org/source/squeeze-lts/bind9

Plugin Details

Severity: Medium

ID: 87427

File Name: debian_DLA-370.nasl

Version: 2.9

Type: local

Agent: unix

Published: 2015/12/17

Updated: 2018/07/06

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bind9, p-cpe:/a:debian:debian_linux:bind9-doc, p-cpe:/a:debian:debian_linux:bind9-host, p-cpe:/a:debian:debian_linux:bind9utils, p-cpe:/a:debian:debian_linux:dnsutils, p-cpe:/a:debian:debian_linux:host, p-cpe:/a:debian:debian_linux:libbind-dev, p-cpe:/a:debian:debian_linux:libbind9-60, p-cpe:/a:debian:debian_linux:libdns69, p-cpe:/a:debian:debian_linux:libisc62, p-cpe:/a:debian:debian_linux:libisccc60, p-cpe:/a:debian:debian_linux:libisccfg62, p-cpe:/a:debian:debian_linux:liblwres60, p-cpe:/a:debian:debian_linux:lwresd, cpe:/o:debian:debian_linux:6.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/12/16

Reference Information

CVE: CVE-2015-8000