CVE ID:	CVE-2021-29952
Description:	When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.
Test IDs:	1.3.6.1.4.1.25623.1.0.844935   1.3.6.1.4.1.25623.1.0.879601   1.3.6.1.4.1.25623.1.2.1.2021.20   1.3.6.1.4.1.25623.1.0.879578   1.3.6.1.4.1.25623.1.0.821225
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-29952 https://bugzilla.mozilla.org/show_bug.cgi?id=1704227 https://bugzilla.mozilla.org/show_bug.cgi?id=1704227 https://www.mozilla.org/security/advisories/mfsa2021-20/ https://www.mozilla.org/security/advisories/mfsa2021-20/