Describe CVE-2015-3686.
What is CVE-2015-3686?
CoreText in Apple iOS before 8.4 and OS X before 10.10.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted text file, a different vulnerability than CVE-2015-3685, CVE-2015-3687, CVE-2015-3688, and CVE-2015-3689..