OpenProject is open-source, web-based project management software. In versions prior to 11.3.3, the `MessagesController` class of OpenProject has a `quote` method that implements the logic behind the Quote button in the discussion forums, and it uses a regex to strip `<pre>` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `<pre>` tag containing `n` spaces causes Ruby's regex engine to backtrack to try 2<sup>n</sup> states in the NFA. This will result in a Regular Expression Denial of Service. The issue is fixed in OpenProject 11.3.3. As a workaround, one may install the patch manually.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
 EUVD |
EUVD-2021-19531 | OpenProject is open-source, web-based project management software. In versions prior to 11.3.3, the `MessagesController` class of OpenProject has a `quote` method that implements the logic behind the Quote button in the discussion forums, and it uses a regex to strip `<pre>` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `<pre>` tag containing `n` spaces causes Ruby's regex engine to backtrack to try 2<sup>n</sup> states in the NFA. This will result in a Regular Expression Denial of Service. The issue is fixed in OpenProject 11.3.3. As a workaround, one may install the patch manually. |
Fixes
Solution
No solution given by the vendor.
Workaround
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References
History
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-03T23:33:55.735Z
Reserved: 2021-05-12T00:00:00
Link: CVE-2021-32763
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-07-20T17:15:07.813
Modified: 2024-11-21T06:07:41.530
Link: CVE-2021-32763
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses