Headline
CVE-2023-47120: DoS through Onebox favicon URL
Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the stable branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the beta and tests-passed branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the stable branch and version 3.2.0.beta3 of the beta and tests-passed branches. There are no known workarounds.
High
jomaxro published GHSA-77cw-xhj8-hfp3
Nov 9, 2023
Package
Discourse (Discourse)
Affected versions
stable > 3.1.0 && < 3.1.2; beta/tests-passed > 3.1.0.beta6 && < 3.2.0.beta2
Patched versions
stable >= 3.1.3; beta/tests-passed >= 3.2.0.beta3
Description
Impact
Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it.
Patches
This issue is patched in the latest stable, beta and tests-passed versions of Discourse.
Workarounds
None.
Severity
CVSS base metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H