Debian DLA-805-1 : bind9 security update

Medium Nessus Plugin ID 96840

Synopsis

The remote Debian host is missing a security update.

Description

Several denial of service vulnerabilities (assertion failures) were discovered in BIND, a DNS server implementation.

CVE-2016-9131

A crafted upstream response to an ANY query could cause an assertion failure.

CVE-2016-9147

A crafted upstream response with self-contradicting DNSSEC data could cause an assertion failure.

CVE-2016-9444

Specially crafted upstream responses with a DS record could cause an assertion failure.

These vulnerabilities predominantly affect DNS servers providing recursive service. Client queries to authoritative-only servers cannot trigger these assertion failures. These vulnerabilities are present whether or not DNSSEC validation is enabled in the server configuration.

For Debian 7 'Wheezy', these problems have been fixed in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u14.

We recommend that you upgrade your bind9 packages.

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/2017/01/msg00041.html

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

Plugin Details

Severity: Medium

ID: 96840

File Name: debian_DLA-805.nasl

Version: 3.5

Type: local

Agent: unix

Published: 2017/01/30

Updated: 2018/07/10

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/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:libbind9-80, p-cpe:/a:debian:debian_linux:libdns88, p-cpe:/a:debian:debian_linux:libisc84, p-cpe:/a:debian:debian_linux:libisccc80, p-cpe:/a:debian:debian_linux:libisccfg82, p-cpe:/a:debian:debian_linux:liblwres80, p-cpe:/a:debian:debian_linux:lwresd, cpe:/o:debian:debian_linux:7.0

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: 2017/01/29

Reference Information

CVE: CVE-2016-9131, CVE-2016-9147, CVE-2016-9444