Inappropriate implementation in V8 WebAssembly JS bindings in Google Chrome prior to 63.0.3239.108 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page.
https://access.redhat.com/errata/RHSA-2017:3479
https://chromereleases.googleblog.com/2017/12/stable-channel-update-for-desktop_14.html