ArchLinux: 202101-5: firefox: arbitrary code execution
Summary
A security issue was found in Firefox before 84.0.2. A malicious peer could have modified a COOKIE-ECHO chunk in a 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.
Resolution
Upgrade to 84.0.2-1.
# pacman -Syu "firefox>=84.0.2-1"
The problem has been fixed upstream in version 84.0.2.
References
https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/#CVE-2020-16044 https://bugzilla.mozilla.org/show_bug.cgi?id=1683964 https://hg.mozilla.org/mozilla-central/rev/08ba03dc8d4420e04e7c77fee3013e68180e6ead https://hg.mozilla.org/mozilla-central/rev/8c09f4813fc7e8f44605b6092262199bff15cdd7 https://hg.mozilla.org/mozilla-central/rev/5991645a87d2abf289686d09d943229c9e3e54b5 https://security.archlinux.org/CVE-2020-16044
Workaround
None.