Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
https://www.debian.org/security/2021/dsa-4824
https://support.apple.com/kb/HT212011
https://support.apple.com/kb/HT212009
https://support.apple.com/kb/HT212007
https://support.apple.com/kb/HT212005
https://support.apple.com/kb/HT212003
https://security.gentoo.org/glsa/202101-30
https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop.html
http://seclists.org/fulldisclosure/2020/Dec/30
http://seclists.org/fulldisclosure/2020/Dec/29
http://seclists.org/fulldisclosure/2020/Dec/27
http://seclists.org/fulldisclosure/2020/Dec/26
http://seclists.org/fulldisclosure/2020/Dec/24
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html