USN-6391-2 is a security advisory issued by Ubuntu that fixes a vulnerability in CUPS.

What is the vulnerability fixed by USN-6391-2?

USN-6391-2 fixes a vulnerability in CUPS that allows an attacker to execute arbitrary code or cause a denial of service.

Which versions of Ubuntu are affected by USN-6391-2?

USN-6391-2 affects Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

How do I fix the vulnerability addressed by USN-6391-2?

To fix the vulnerability addressed by USN-6391-2, update CUPS to version 2.2.7-1ubuntu2.10+esm2 for Ubuntu 16.04 LTS and version 2.1.3-4ubuntu0.11+esm4 for Ubuntu 18.04 LTS.

Where can I find more information about USN-6391-2?

More information about USN-6391-2 can be found on Ubuntu's security advisory page.

Vulnerability/
USN-6391-2

21/9/2023

USN-6391-2: CUPS vulnerability

First published: Thu Sep 21 2023(Updated: )

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.

Affected Software	Affected Version	How to fix
All of
ubuntu/cups	<2.2.7-1ubuntu2.10+esm2	2.2.7-1ubuntu2.10+esm2
Ubuntu Linux	=18.04
All of
ubuntu/cups	<2.1.3-4ubuntu0.11+esm4	2.1.3-4ubuntu0.11+esm4
Ubuntu Linux	=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2023-4504

Frequently Asked Questions

What is USN-6391-2?
USN-6391-2 is a security advisory issued by Ubuntu that fixes a vulnerability in CUPS.
What is the vulnerability fixed by USN-6391-2?
USN-6391-2 fixes a vulnerability in CUPS that allows an attacker to execute arbitrary code or cause a denial of service.
Which versions of Ubuntu are affected by USN-6391-2?
USN-6391-2 affects Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
How do I fix the vulnerability addressed by USN-6391-2?
To fix the vulnerability addressed by USN-6391-2, update CUPS to version 2.2.7-1ubuntu2.10+esm2 for Ubuntu 16.04 LTS and version 2.1.3-4ubuntu0.11+esm4 for Ubuntu 18.04 LTS.
Where can I find more information about USN-6391-2?
More information about USN-6391-2 can be found on Ubuntu's security advisory page.

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