Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 68.2.0. Security Fix: * Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2 * Mozilla: Use-after-free when creating index updates in IndexedDB * Mozilla: Potentially exploitable crash due to 360 Total Security * Mozilla: Stack buffer overflow in HKDF output * Mozilla: Stack buffer overflow in WebRTC networking * Mozilla: Unintended access to a privileged JSONView object * Mozilla: document.domain-based origin isolation has same-origin-property violation * Mozilla: Incorrect HTML parsing results in XSS bypass technique * expat: heap-based buffer over-read via crafted XML input For more details about the security issue, including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.