Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : bind9 regression (USN-3346-2)

Medium Nessus Plugin ID 103319

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

USN-3346-1 fixed vulnerabilities in Bind. The fix for CVE-2017-3142 introduced a regression in the ability to receive an AXFR or IXFR in the case where TSIG is used and not every message is signed. This update fixes the problem.

In addition, this update adds the new root zone key signing key (KSK).

Clement Berthaux discovered that Bind did not correctly check TSIG authentication for zone update requests. An attacker could use this to improperly perform zone updates. (CVE-2017-3143)

Clement Berthaux discovered that Bind did not correctly check TSIG authentication for zone transfer requests. An attacker could use this to improperly transfer entire zones.
(CVE-2017-3142).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected bind9 package.

See Also

https://usn.ubuntu.com/3346-2/

Plugin Details

Severity: Medium

ID: 103319

File Name: ubuntu_USN-3346-2.nasl

Version: 3.9

Type: local

Agent: unix

Published: 2017/09/19

Updated: 2019/02/12

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:P/I:N/A:N

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:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:bind9, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/09/18

Vulnerability Publication Date: 2019/01/16

Reference Information

CVE: CVE-2017-3142, CVE-2017-3143

USN: 3346-2