CVE-2022-23641
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.
Does this matter?
Lower severity and a low EPSS score (1.16%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.16% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- discourse/discourse
- Source
- security-advisories@github.com
References
- https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565ePatch, Third Party Advisory
- https://github.com/discourse/discourse/pull/15927Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxvIssue Tracking, Third Party Advisory
- https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565ePatch, Third Party Advisory
- https://github.com/discourse/discourse/pull/15927Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxvIssue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.