CVE ID:	CVE-2021-38496
Description:	During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-38496 Debian Security Information: DSA-5034 (Google Search) https://www.debian.org/security/2022/dsa-5034 https://bugzilla.mozilla.org/show_bug.cgi?id=1725335 https://bugzilla.mozilla.org/show_bug.cgi?id=1725335 https://www.mozilla.org/security/advisories/mfsa2021-43/ https://www.mozilla.org/security/advisories/mfsa2021-43/ https://www.mozilla.org/security/advisories/mfsa2021-44/ https://www.mozilla.org/security/advisories/mfsa2021-44/ https://www.mozilla.org/security/advisories/mfsa2021-45/ https://www.mozilla.org/security/advisories/mfsa2021-45/ https://www.mozilla.org/security/advisories/mfsa2021-46/ https://www.mozilla.org/security/advisories/mfsa2021-46/ https://www.mozilla.org/security/advisories/mfsa2021-47/ https://www.mozilla.org/security/advisories/mfsa2021-47/ https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html