USN-3893-2: Bind vulnerabilities

25 February 2019

bind9 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 ESM

Summary

Several security issues were fixed in Bind.

Software Description

  • bind9 - Internet Domain Name Server

Details

USN-3893-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2018-5745)

It was discovered that Bind incorrectly handled certain controls for zone transfers, contrary to expectations. (CVE-2019-6465)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 ESM
bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.27

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References