CVE ID:	CVE-2021-29961
Description:	When styling and rendering an oversized `` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-29961 https://security.gentoo.org/glsa/202107-09 https://bugzilla.mozilla.org/show_bug.cgi?id=1700235 https://bugzilla.mozilla.org/show_bug.cgi?id=1700235 https://www.mozilla.org/security/advisories/mfsa2021-23/ https://www.mozilla.org/security/advisories/mfsa2021-23/