=========================================================================Ubuntu Security Notice USN-5398-1
April 28, 2022

libsdl1.2, libsdl2 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

SDL (Simple DirectMedia Layer) could be made to crash or run programs if
it opened a specially crafted file.

Software Description:
- libsdl2: Cross-platform multimedia library with low access to hardware
- libsdl1.2: Simple DirectMedia Layer

Details:

It was discovered that SDL (Simple DirectMedia Layer) incorrectly handled
certain files. An attacker could possibly use this issue to cause a denial
of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 21.10:
   libsdl2-2.0-0                   2.0.14+dfsg2-3ubuntu0.1

Ubuntu 18.04 LTS:
   libsdl1.2debian                 1.2.15+dfsg2-0.1ubuntu0.2

Ubuntu 16.04 ESM:
   libsdl1.2debian                 1.2.15+dfsg1-3ubuntu0.1+esm1

Ubuntu 14.04 ESM:
   libsdl1.2debian                 1.2.15-8ubuntu1.1+esm2

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

References:
   https://ubuntu.com/security/notices/USN-5398-1
   CVE-2021-33657

Package Information:
   https://launchpad.net/ubuntu/+source/libsdl2/2.0.14+dfsg2-3ubuntu0.1
   https://launchpad.net/ubuntu/+source/libsdl1.2/1.2.15+dfsg2-0.1ubuntu0.2