Critical CUPS Vulnerability USN-6844-1: Urgent Update for Ubuntu Systems
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 23.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: CUPS could be made to arbitrary chmod paths with specially crafted configuration file. Software Description: - cups: Common UNIX Printing System(tm) Details: Rory McNamara discovered that when starting the cupsd server with a Listen configuration item, the cupsd process fails to validate if bind call passed. An attacker could possibly trick cupsd to perform an arbitrary chmod of the provided argument, providing world-writable access to the target.
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS cups 2.4.7-1.2ubuntu7.1 Ubuntu 23.10 cups 2.4.6-0ubuntu3.1 Ubuntu 22.04 LTS cups 2.4.1op1-1ubuntu4.9 Ubuntu 20.04 LTS cups 2.3.1-9ubuntu1.7 Ubuntu 18.04 LTS cups 2.2.7-1ubuntu2.10+esm4 Available with Ubuntu Pro Ubuntu 16.04 LTS cups 2.1.3-4ubuntu0.11+esm6 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-6844-1
CVE-2024-35235
Package Information
https://launchpad.net/ubuntu/+source/cups/2.4.7-1.2ubuntu7.1 https://launchpad.net/ubuntu/+source/cups/2.4.6-0ubuntu3.1 https://launchpad.net/ubuntu/+source/cups/2.4.1op1-1ubuntu4.9 https://launchpad.net/ubuntu/+source/cups/2.3.1-9ubuntu1.7