A flaw was found in Little CMS (aka Little Color Management System) 2.9. An integer overflow in the AllocateDataSet function in cmscgats.c, leading to a heap-based buffer overflow in the SetData function via a crafted file in the second argument to cmsIT8LoadFromFile.
References: https://github.com/mm2/Little-CMS/issues/171
Upstream Fix: https://github.com/mm2/Little-CMS/commit/768f70ca405cd3159d990e962d54456773bb8cf8