==========================================================================
Ubuntu Security Notice USN-6392-1
September 20, 2023

libppd vulnerability
==========================================================================

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

- Ubuntu 23.04

Summary:

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

Software Description:
- libppd: OpenPrinting libppd

Details:

It was discovered that libppd incorrectly parsed certain Postscript
objects. If a user or automated system were tricked into printing a
specially crafted document, a remote attacker could use this issue to cause
libppd to crash, resulting in 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 23.04:
   libppd2                         2:2.0~rc1-0ubuntu1.2

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

References:
   https://ubuntu.com/security/notices/USN-6392-1
   CVE-2023-4504

Package Information:
   https://launchpad.net/ubuntu/+source/libppd/2:2.0~rc1-0ubuntu1.2