[USN-7527-1] libfcgi-perl vulnerability

==========================================================================
Ubuntu Security Notice USN-7527-1
May 22, 2025

libfcgi-perl vulnerability
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

libfcgi-perl could be made to crash or execute arbitrary code.

Software Description:
- libfcgi-perl: Fast CGI module for perl

Details:

It was discovered that libfcgi-perl incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a crash or execute
arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS
libfcgi-perl 0.79-1ubuntu0.1

Ubuntu 18.04 LTS
libfcgi-perl 0.78-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libfcgi-perl 0.77-1ubuntu0.1~esm1
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7527-1
CVE-2025-40907

Package Information:
https://launchpad.net/ubuntu/+source/libfcgi-perl/0.79-1ubuntu0.1