[USN-5408-1] Dnsmasq vulnerability

========================================================================== Ubuntu Security Notice USN-5408-1 May 10, 2022
dnsmasq vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.04 LTS – Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS – Ubuntu 16.04 ESM – Ubuntu 14.04 ESM
Dnsmasq could be made to execute arbitrary code or expose sensitive information if it received a specially crafted input.
Software Description: – dnsmasq: Small caching DNS proxy and DHCP/TFTP server
Petr Menšík and Richard Johnson discovered that Dnsmasq incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or expose sensitive information.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04 LTS: dnsmasq 2.86-1.1ubuntu0.1 dnsmasq-base 2.86-1.1ubuntu0.1 dnsmasq-utils 2.86-1.1ubuntu0.1
Ubuntu 21.10: dnsmasq 2.85-1ubuntu2.1 dnsmasq-base 2.85-1ubuntu2.1 dnsmasq-utils 2.85-1ubuntu2.1
Ubuntu 20.04 LTS: dnsmasq 2.80-1.1ubuntu1.5 dnsmasq-base 2.80-1.1ubuntu1.5 dnsmasq-utils 2.80-1.1ubuntu1.5
Ubuntu 18.04 LTS: dnsmasq 2.79-1ubuntu0.6 dnsmasq-base 2.79-1ubuntu0.6 dnsmasq-utils 2.79-1ubuntu0.6
Ubuntu 16.04 ESM: dnsmasq 2.75-1ubuntu0.16.04.10+esm1 dnsmasq-base 2.75-1ubuntu0.16.04.10+esm1 dnsmasq-utils 2.75-1ubuntu0.16.04.10+esm1
Ubuntu 14.04 ESM: dnsmasq 2.68-1ubuntu0.2+esm1 dnsmasq-base 2.68-1ubuntu0.2+esm1 dnsmasq-utils 2.68-1ubuntu0.2+esm1
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5408-1 CVE-2022-0934
Package Information: launchpad.net/ubuntu/+source/dnsmasq/2.86-1.1ubuntu0.1 launchpad.net/ubuntu/+source/dnsmasq/2.85-1ubuntu2.1 launchpad.net/ubuntu/+source/dnsmasq/2.80-1.1ubuntu1.5 launchpad.net/ubuntu/+source/dnsmasq/2.79-1ubuntu0.6