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Ubuntu 23.04: USN-6391-1 Critical Denial Of Service in CUPS

ubuntu
Calendar Grey September 20, 2023
Dist Ubuntu Esm H88
Ubuntu 6391-1 alert highlights CUPS vulnerability permitting system failures or arbitrary code execution via specially designed files.
CUPS could be made to crash or run programs if it opened a specially crafted file.

Summary

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

crafted file.

Software Description:

- cups: Common UNIX Printing System(tm)

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.

Topics%20covered

Topics Covered

security advisory denial of service critical cups ubuntu

Update Instructions

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

Ubuntu 23.04:
   cups                            2.4.2-3ubuntu2.5

Ubuntu 22.04 LTS:
   cups                            2.4.1op1-1ubuntu4.7

Ubuntu 20.04 LTS:
   cups                            2.3.1-9ubuntu1.6

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

References

https://ubuntu.com/security/notices/USN-6391-1

CVE-2023-4504

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6391-1

Topics%20covered

Topics Covered

security advisory denial of service critical cups ubuntu

Package Information

https://launchpad.net/ubuntu/+source/cups/2.4.2-3ubuntu2.5
https://launchpad.net/ubuntu/+source/cups/2.4.1op1-1ubuntu4.7
https://launchpad.net/ubuntu/+source/cups/2.3.1-9ubuntu1.6

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