Arch Linux Security Advisory ASA-202101-17 ========================================== Severity: Critical Date : 2021-01-12 CVE-ID : CVE-2020-16044 Package : thunderbird Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-1440 Summary ======= The package thunderbird before version 78.6.1-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 78.6.1-1. # pacman -Syu "thunderbird>=78.6.1-1" The problem has been fixed upstream in version 78.6.1. Workaround ========== None. Description =========== A security issue was found in Firefox before 84.0.2 and Thunderbird before 78.6.1-1. A malicious peer could have modified a COOKIE-ECHO chunk in an SCTP packet in a way that potentially resulted in a use- after-free. Mozilla presumes that with enough effort it could have been exploited to run arbitrary code. Impact ====== A malicious remote user could forge an SCTP packet and possibly execute arbitrary code. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2021-02/ https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/#CVE-2020-1604... https://bugzilla.mozilla.org/show_bug.cgi?id=1683964 https://hg.mozilla.org/mozilla-central/rev/08ba03dc8d4420e04e7c77fee3013e681... https://hg.mozilla.org/mozilla-central/rev/8c09f4813fc7e8f44605b6092262199bf... https://hg.mozilla.org/mozilla-central/rev/5991645a87d2abf289686d09d943229c9... https://security.archlinux.org/CVE-2020-16044