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USN-6844-1: CUPS vulnerability

24 June 2024

CUPS could be made to arbitrary chmod paths with specially crafted configuration file.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

  • 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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 24.04
Ubuntu 23.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References