Ubuntu 24.x LTS: USN-7241-1 moderate: bind DNS denial of service

ubuntu

January 29, 2025

Several security issues were fixed in Bind.

Summary

Several security issues were fixed in Bind.

Software Description:

- bind9: Internet Domain Name Server

Details:

Toshifumi Sakaguchi discovered that Bind incorrectly handled many records

in the additional section. A remote attacker could possibly use this issue

to cause Bind to consume CPU resources, leading to a denial of service.

(CVE-2024-11187)

Jean-François Billaud discovered that the Bind DNS-over-HTTPS

implementation incorrectly handled a heavy query load. A remote attacker

could possibly use this issue to cause Bind to consume resources, leading

to a denial of service. (CVE-2024-12705)

Topics Covered

security advisory denial of service bind ubuntu security issues network service

Update Instructions

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

Ubuntu 24.10
   bind9                           1:9.20.0-2ubuntu3.1

Ubuntu 24.04 LTS
   bind9                           1:9.18.30-0ubuntu0.24.04.2

Ubuntu 22.04 LTS
   bind9                           1:9.18.30-0ubuntu0.22.04.2

Ubuntu 20.04 LTS
   bind9                           1:9.18.30-0ubuntu0.20.04.2

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