[USN-7965-1] SimGear vulnerability

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-7965-1
January 15, 2026

simgear vulnerability
==========================================================================

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

SimGear could be made to run programs as an administrator if it opened a
specially crafted file.

Software Description:
- simgear: set of open-source libraries for assembling 3d simulations, games, and visualizations

Details:

It was discovered that SimGear could be made to bypass the sandboxing of
Nasal scripts. 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 24.04 LTS
  libsimgear-dev                  1:2020.3.18+dfsg-2.1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  libsimgear-dev                  1:2020.3.6+dfsg-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  libsimgear-dev                  1:2019.1.1+dfsg-3ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libsimgear-dev                  1:2018.1.1+dfsg-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libsimgear-dev                  3.4.0-3ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  libsimgearcore3.4.0v5           3.4.0-3ubuntu0.1~esm1
                                  Available with Ubuntu Pro
  libsimgearscene3.4.0v5          3.4.0-3ubuntu0.1~esm1
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7965-1
  CVE-2025-0781
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