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Ubuntu Security Notice USN-6008-1
April 11, 2023

exo vulnerability

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

• Ubuntu 22.04 ESM
• Ubuntu 20.04 ESM
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Summary:

Exo could be made to crash or run programs if it opened a specially crafted
file.

Software Description:

• exo: Extension library used in the Xfce desktop

Details:

It was discovered that Exo did not properly sanitized desktop files.
A remote attacker could possibly use this issue to to cause a crash or
arbitrary code execution.

Update instructions:

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

Ubuntu 22.04 ESM:
libexo-2-0 4.16.3-1ubuntu0.1~esm1
libexo-common 4.16.3-1ubuntu0.1~esm1

Ubuntu 20.04 ESM:
libexo-1-0 0.12.11-1ubuntu1.20.04.1+esm1
libexo-2-0 0.12.11-1ubuntu1.20.04.1+esm1
libexo-common 0.12.11-1ubuntu1.20.04.1+esm1

Ubuntu 18.04 ESM:
libexo-1-0 0.12.2-0ubuntu0.18.04.1+esm1
libexo-2-0 0.12.2-0ubuntu0.18.04.1+esm1
libexo-common 0.12.2-0ubuntu0.18.04.1+esm1

Ubuntu 16.04 ESM:
libexo-1-0 0.10.7-1ubuntu0.1~esm1
libexo-common 0.10.7-1ubuntu0.1~esm1

Ubuntu 14.04 ESM:
libexo-1-0 0.10.2-3ubuntu1.14.04.2+esm1
libexo-common 0.10.2-3ubuntu1.14.04.2+esm1

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

References:
https://ubuntu.com/security/notices/USN-6008-1
CVE-2022-32278