What is the vulnerability ID for this issue?

The vulnerability ID is CVE-2023-1894.

What is the severity of CVE-2023-1894?

The severity of CVE-2023-1894 is medium with a CVSS score of 5.3.

Which software versions are affected by CVE-2023-1894?

Puppet Server 7.9.2 and Puppet Enterprise versions 2021.7.1 and 2023.0 are affected by CVE-2023-1894.

What is the impact of CVE-2023-1894?

CVE-2023-1894 can significantly slow down server operations due to a Regular Expression Denial of Service (ReDoS) issue in certificate validation.

How can I fix CVE-2023-1894?

To fix CVE-2023-1894, you should upgrade to a patched version of Puppet Server or Puppet Enterprise as recommended by the vendor.

Vulnerability/
CVE-2023-1894

medium

5.3

CWE

1333

4/5/2023

29/1/2025

CVE-2023-1894

First published: Thu May 04 2023(Updated: )

A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.

Credit: security@puppet.com security@puppet.com

Affected Software	Affected Version	How to fix
redhat/puppet-server	<7.11.0	7.11.0
redhat/puppet-server	<8.0.0	8.0.0
Puppetlabs Puppet Enterprise	=2021.7.1
Puppetlabs Puppet Enterprise	=2023.0
Puppet Puppet Server	=7.9.2
	=2021.7.1
	=2023.0
	=7.9.2

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Reference Links

Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID is CVE-2023-1894.
What is the severity of CVE-2023-1894?
The severity of CVE-2023-1894 is medium with a CVSS score of 5.3.
Which software versions are affected by CVE-2023-1894?
Puppet Server 7.9.2 and Puppet Enterprise versions 2021.7.1 and 2023.0 are affected by CVE-2023-1894.
What is the impact of CVE-2023-1894?
CVE-2023-1894 can significantly slow down server operations due to a Regular Expression Denial of Service (ReDoS) issue in certificate validation.
How can I fix CVE-2023-1894?
To fix CVE-2023-1894, you should upgrade to a patched version of Puppet Server or Puppet Enterprise as recommended by the vendor.

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collector/mitre-cve
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version/puppetlabs puppet enterprise/2021.7.1
version/puppetlabs puppet enterprise/2023.0
canonical/puppet puppet server
version/puppet puppet server/7.9.2

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