Integer overflow in international date handling in International Components for Unicode (ICU) for C/C++ before 60.1, as used in V8 in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.
https://www.debian.org/security/2018/dsa-4150
https://usn.ubuntu.com/3610-1/
https://security.gentoo.org/glsa/201801-03
https://chromereleases.googleblog.com/2017/12/stable-channel-update-for-desktop.html