What is CVE-2023-25167?

CVE-2023-25167 is a vulnerability in Discourse, an open source discussion platform, that allows a malicious user to cause a regular expression denial of service using a carefully crafted git URL.

How severe is CVE-2023-25167?

CVE-2023-25167 has a severity rating of 5.7, which is considered medium.

Which versions of Discourse are affected by CVE-2023-25167?

Discourse versions up to and excluding 3.0.1, as well as 3.1.0-beta1, are affected by CVE-2023-25167.

How can I fix CVE-2023-25167?

It is recommended to upgrade Discourse to the latest stable, beta, or tests-passed versions, which include the fix for CVE-2023-25167.

Where can I find more information about CVE-2023-25167?

You can find more information about CVE-2023-25167 on the Discourse GitHub repository and the Discourse security advisories page.

Vulnerability/
CVE-2023-25167

medium

6.5

CWE

1333

8/2/2023

2/8/2024

CVE-2023-25167: Regular expression denial of service via installing themes via git in discourse

First published: Wed Feb 08 2023(Updated: )

Discourse is an open source discussion platform. In affected versions a malicious user can cause a regular expression denial of service using a carefully crafted git URL. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this issue.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Discourse Discourse	<3.0.1
Discourse Discourse	=3.1.0-beta1

Remedy

https://github.com/discourse/discourse/commit/ec4c30270887366dc28788bc4ab8a22a098573cd

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Reference Links

Frequently Asked Questions

What is CVE-2023-25167?
CVE-2023-25167 is a vulnerability in Discourse, an open source discussion platform, that allows a malicious user to cause a regular expression denial of service using a carefully crafted git URL.
How severe is CVE-2023-25167?
CVE-2023-25167 has a severity rating of 5.7, which is considered medium.
Which versions of Discourse are affected by CVE-2023-25167?
Discourse versions up to and excluding 3.0.1, as well as 3.1.0-beta1, are affected by CVE-2023-25167.
How can I fix CVE-2023-25167?
It is recommended to upgrade Discourse to the latest stable, beta, or tests-passed versions, which include the fix for CVE-2023-25167.
Where can I find more information about CVE-2023-25167?
You can find more information about CVE-2023-25167 on the Discourse GitHub repository and the Discourse security advisories page.

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version/discourse discourse/3.1.0-beta1

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