Debian DSA-3854-1 : bind9 - security update

Medium Nessus Plugin ID 100167

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VPR Score: 4.4

Synopsis

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

Description

Several vulnerabilities were discovered in BIND, a DNS server implementation. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2017-3136 Oleg Gorokhov of Yandex discovered that BIND does not properly handle certain queries when using DNS64 with the 'break-dnssec yes;' option, allowing a remote attacker to cause a denial-of-service.

- CVE-2017-3137 It was discovered that BIND makes incorrect assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records, leading to situations where BIND exits with an assertion failure. An attacker can take advantage of this condition to cause a denial-of-service.

- CVE-2017-3138 Mike Lalumiere of Dyn, Inc. discovered that BIND can exit with a REQUIRE assertion failure if it receives a null command string on its control channel. Note that the fix applied in Debian is only applied as a hardening measure. Details about the issue can be found at https://kb.isc.org/article/AA-01471 .

Solution

Upgrade the bind9 packages.

For the stable distribution (jessie), these problems have been fixed in version 1:9.9.5.dfsg-9+deb8u11.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860224

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860225

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860226

https://security-tracker.debian.org/tracker/CVE-2017-3136

https://security-tracker.debian.org/tracker/CVE-2017-3137

https://security-tracker.debian.org/tracker/CVE-2017-3138

https://kb.isc.org/docs/aa-01471

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

https://www.debian.org/security/2017/dsa-3854

Plugin Details

Severity: Medium

ID: 100167

File Name: debian_DSA-3854.nasl

Version: 3.12

Type: local

Agent: unix

Published: 2017/05/15

Updated: 2020/09/23

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 4.4

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, 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: 2017/05/14

Vulnerability Publication Date: 2019/01/16

Reference Information

CVE: CVE-2017-3136, CVE-2017-3137, CVE-2017-3138

DSA: 3854