CVE-2021-32763 Vulnerability Details

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CVE-2021-32763 Metadata Quick Info

CVE Published: 20/07/2021 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: GitHub_M | Vendor: opf | Product: openproject
Status : PUBLISHED

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CVE-2021-32763 Description

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 `

` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `
` tag containing `n` spaces causes Ruby\'s regex engine to backtrack to try 2n 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
					CVSS Version: 3.1 | 
					Base Score: 4.3 MEDIUM

					Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L 


					
					l➤ Exploitability Metrics:

						     Attack Vector (AV)* NETWORK 

						     Attack Complexity (AC)* LOW 

						     Privileges Required (PR)* LOW 

						     User Interaction (UI)* NONE 

						     Scope (S)* UNCHANGED 


  			

					l➤ Impact Metrics:

						     Confidentiality Impact (C)* NONE 

						     Integrity Impact (I)* NONE 

						     Availability Impact (A)* LOW 


					
					
Weakness Enumeration (CWE)
					CWE-ID: CWE-400 

					CWE Name: CWE-400: Uncontrolled Resource Consumption 

					Source: opf 


					
					
Common Attack Pattern Enumeration and Classification (CAPEC)
					CAPEC-ID:  

					CAPEC Description:  



					
					
						Source: NVD (National Vulnerability Database).