1. Ubuntu Security Notices
  2. USN-6391-2

USN-6391-2: CUPS vulnerability

Publication date

21 September 2023

Overview

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

Releases

Packages

  • cups - Common UNIX Printing System(tm)

Details

USN-6391-1 fixed a vulnerability in CUPS. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that CUPS 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 CUPS to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

USN-6391-1 fixed a vulnerability in CUPS. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that CUPS 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 CUPS to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic cups –  2.2.7-1ubuntu2.10+esm2  
16.04 xenial cups –  2.1.3-4ubuntu0.11+esm4  

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References

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