Debian DSA-3795-1 : bind9 - security update

medium Nessus Plugin ID 97399
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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: 3.11

Type: local

Agent: unix

Published: 2/27/2017

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3

Risk Factor: Medium

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: 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 Ease: No known exploits are available

Patch Publication Date: 2/26/2017

Vulnerability Publication Date: 1/16/2019

Reference Information

CVE: CVE-2017-3135

DSA: 3795