Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : bind9 vulnerability (USN-2728-1)

High Nessus Plugin ID 85765

Synopsis

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

Description

Hanno Bock discovered that Bind incorrectly handled certain malformed keys when configured to perform DNSSEC validation. A remote attacker could use this issue with specially crafted zone data to cause Bind to crash, resulting in a denial of service.

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/2728-1/

Plugin Details

Severity: High

ID: 85765

File Name: ubuntu_USN-2728-1.nasl

Version: 2.10

Type: local

Agent: unix

Published: 2015/09/03

Updated: 2019/09/18

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:bind9, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04

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: 2015/09/02

Vulnerability Publication Date: 2015/09/04

Reference Information

CVE: CVE-2015-5722

USN: 2728-1