An out of bounds read in forward error correction code in WebRTC in Google Chrome prior to 69.0.3497.81 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.
https://www.exploit-db.com/exploits/45444/
https://security.gentoo.org/glsa/201811-10
https://chromereleases.googleblog.com/2018/09/stable-channel-update-for-desktop.html