CVE Vulnerability

CVE-2021-32763

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f Patch Third Party Advisory
https://github.com/opf/openproject/pull/9447.patch Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*
Information

Published : 2021-07-20 05:15

Updated : 2022-04-25 07:07

NVD link : CVE-2021-32763

Mitre link : CVE-2021-32763

Products Affected
No products.
CWE
NVD-CWE-Other