A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, watchOS 5.2. A malicious application may be able to elevate privileges.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8511
Reference (s):
- https://support.apple.com/HT209599
- https://support.apple.com/HT209600
- https://support.apple.com/HT209602