ReadRLEImage in coders/rle.c in GraphicsMagick 1.3.26 mishandles RLE headers that specify too few colors, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-14733.json"