Debian DSA-3795-1 : bind9 - security update

Medium Nessus Plugin ID 97399

Synopsis

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

Description

It was discovered that a maliciously crafted query can cause ISC's BIND DNS server (named) to crash if both Response Policy Zones (RPZ) and DNS64 (a bridge between IPv4 and IPv6 networks) are enabled. It is uncommon for both of these options to be used in combination, so very few systems will be affected by this problem in practice.

This update also corrects an additional regression caused by the fix for CVE-2016-8864, which was applied in a previous security update.

Solution

Upgrade the bind9 packages.

For the stable distribution (jessie), this problem has been fixed in version 1:9.9.5.dfsg-9+deb8u10.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855520

https://security-tracker.debian.org/tracker/CVE-2016-8864

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

https://www.debian.org/security/2017/dsa-3795

Plugin Details

Severity: Medium

ID: 97399

File Name: debian_DSA-3795.nasl

Version: 3.9

Type: local

Agent: unix

Published: 2017/02/27

Updated: 2019/02/11

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3.0

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/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, cpe:/o:debian:debian_linux:8.0

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: 2017/02/26

Vulnerability Publication Date: 2019/01/16

Reference Information

CVE: CVE-2017-3135

DSA: 3795