Integer overflow in the getCoverageFormat12 function in CmapCoverage.cpp in the Minikin library in Android 5.x before 5.1.1 LMY49G and 6.x before 2016-02-01 allows attackers to cause a denial of service (continuous rebooting) via an application that triggers loading of a crafted TTF font, aka internal bug 25645298.
Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information.