[USN-4921-1] libcaca vulnerability

========================================================================== Ubuntu Security Notice USN-4921-1 April 20, 2021
libcaca vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS – Ubuntu 16.04 LTS – Ubuntu 14.04 ESM
libcaca could be made to execute arbitrary code if it received a specially crafted image.
Software Description: – libcaca: None
It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: caca-utils 0.99.beta19-2.1ubuntu1.20.10.1 libcaca0 0.99.beta19-2.1ubuntu1.20.10.1
Ubuntu 20.04 LTS: caca-utils 0.99.beta19-2.1ubuntu1.20.04.1 libcaca0 0.99.beta19-2.1ubuntu1.20.04.1
Ubuntu 18.04 LTS: caca-utils 0.99.beta19-2ubuntu0.18.04.2 libcaca0 0.99.beta19-2ubuntu0.18.04.2
Ubuntu 16.04 LTS: caca-utils 0.99.beta19-2ubuntu0.16.04.2 libcaca0 0.99.beta19-2ubuntu0.16.04.2
Ubuntu 14.04 ESM: caca-utils 0.99.beta18-1ubuntu5.1+esm1 libcaca0 0.99.beta18-1ubuntu5.1+esm1
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-4921-1 CVE-2021-3410
Package Information: launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.1ubuntu1.20.10.1 launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2.1ubuntu1.20.04.1 launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.18.04.2 launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.16.04.2