CVE ID:	CVE-2021-38498
Description:	During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-38498 https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 https://www.mozilla.org/security/advisories/mfsa2021-43/ https://www.mozilla.org/security/advisories/mfsa2021-43/ https://www.mozilla.org/security/advisories/mfsa2021-45/ https://www.mozilla.org/security/advisories/mfsa2021-45/ https://www.mozilla.org/security/advisories/mfsa2021-47/ https://www.mozilla.org/security/advisories/mfsa2021-47/