This update for MozillaThunderbird fixes the following issues:
Security issues fixed:
Update to MozillaThunderbird 60.6.1 (bsc#1130262):
CVE-2019-9813: Fixed Ionmonkey type confusion with proto mutations
CVE-2019-9810: Fixed IonMonkey MArraySlice incorrect alias information
Update to MozillaThunderbird 60.6 (bsc#1129821):
CVE-2018-18506: Fixed an issue with Proxy Auto-Configuration file
CVE-2019-9801: Fixed an issue which could allow Windows programs to be exposed to web content
CVE-2019-9788: Fixed multiple memory safety bugs
CVE-2019-9790: Fixed a Use-after-free vulnerability when removing in-use DOM elements
CVE-2019-9791: Fixed an incorrect Type inference for constructors entered through on-stack replacement with IonMonkey
CVE-2019-9792: Fixed an issue where IonMonkey leaks JS_OPTIMIZED_OUT magic value to script
CVE-2019-9793: Fixed multiple improper bounds checks when Spectre mitigations are disabled
CVE-2019-9794: Fixed an issue where command line arguments not discarded during execution
CVE-2019-9795: Fixed a Type-confusion vulnerability in IonMonkey JIT compiler
CVE-2019-9796: Fixed a Use-after-free vulnerability in SMIL animation controller
Release notes: https://www.mozilla.org/en-US/security/advisories/mfsa2019-12/ https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/