Debian DSA-3680-1 : bind9 - security update

high Nessus Plugin ID 93748
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

Two vulnerabilities were reported in BIND, a DNS server.

- CVE-2016-2775 The lwresd component in BIND (which is not enabled by default) could crash while processing an overlong request name. This could lead to a denial of service.

- CVE-2016-2776 A crafted query could crash the BIND name server daemon, leading to a denial of service. All server roles (authoritative, recursive and forwarding) in default configurations are affected.

Solution

Upgrade the bind9 packages.

For the stable distribution (jessie), these problems have been fixed in version 1:9.9.5.dfsg-9+deb8u7.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=831796

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=839010

https://security-tracker.debian.org/tracker/CVE-2016-2775

https://security-tracker.debian.org/tracker/CVE-2016-2776

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

https://www.debian.org/security/2016/dsa-3680

Plugin Details

Severity: High

ID: 93748

File Name: debian_DSA-3680.nasl

Version: 2.13

Type: local

Agent: unix

Published: 9/28/2016

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: E:P/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: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/27/2016

Reference Information

CVE: CVE-2016-2775, CVE-2016-2776

DSA: 3680

IAVA: 2017-A-0004