Apple posted security updates for macOS vulnerabilities, two of which were disclosed by Trend Micro. CVE-2019-8519 is a bug in the graphic drivers installed in macOS Mojave 10.14.3 involving out-of-bound memory reading (OOB). The vulnerability can allow access to restricted information as it leads to a buffer overflow or segmentation fault.

https://blog.trendmicro.com/trendlabs-security-intelligence/patch-with-march-macos-updates-vulnerabilities-may-expose-restricted-information-enable-arbitrary-code-execution/