A precision error in Skia in Google Chrome prior to 68.0.3440.75 allowed a remote attacker who had compromised the renderer process to perform an out of bounds memory write via a crafted HTML page.
https://access.redhat.com/errata/RHSA-2018:2282
https://chromereleases.googleblog.com/2018/07/stable-channel-update-for-desktop.html