[USN-7043-2] cups-filters vulnerability

[Leonidas S. Barbosa]

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Ubuntu Security Notice USN-7043-2
October 01, 2024

cups-filters vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

cups-filters could be made to run programs if it received specially crafted
network traffic.

Software Description:
- cups-filters: OpenPrinting CUPS Filters

Details:

USN-7043-1 fixed a vulnerability in cups-filters. This update provides
the corresponding update for Ubuntu 18.04 LTS.


Original advisory details:

 Simone Margaritelli discovered that the cups-filters cups-browsed component
 could be used to create arbitrary printers from outside the local network.
 In combination with issues in other printing components, a remote attacker
 could possibly use this issue to connect to a system, created manipulated
 PPD files, and execute arbitrary code when a printer is used. This update
 disables support for the legacy CUPS printer discovery protocol.

Update instructions:

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

Ubuntu 18.04 LTS
  cups-browsed                    1.20.2-0ubuntu3.3+esm1
                                  Available with Ubuntu Pro
  cups-filters                    1.20.2-0ubuntu3.3+esm1
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7043-2
  https://ubuntu.com/security/notices/USN-7043-1
  CVE-2024-47176

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