Use after free in WebBluetooth in Google Chrome prior to 78.0.3904.108 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page.
https://security.gentoo.org/glsa/202003-08
https://chromereleases.googleblog.com/2019/11/stable-channel-update-for-desktop_18.html
https://access.redhat.com/errata/RHSA-2019:3955
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00035.html