CVE-2022-23641 Information

Description

Discourse is an open source discussion platform. In versions prior to 2.8.1 in the stable branch 2.9.0.beta2 in the beta branch and 2.9.0.beta2 in the tests-passed branch users can trigger a Denial of Service attack by posting a streaming URL. Parsing Oneboxes in the background job trigger an infinite loop which cause memory leaks. This issue is patched in version 2.8.1 of the stable branch 2.9.0.beta2 of the beta branch and 2.9.0.beta2 of the tests-passed branch. As a workaround disable onebox in admin panel completely or specify allow list of domains that will be oneboxed.

CVSS Vector

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

Reference

https://github.com/discourse/discourse/pull/15927 https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxv https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565e

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5