GHSA-GM37-QX7W-P258 ImageMagick: Possible memory leak in ASHLAR encoder

A memory leak in the ASHLAR image writer allows an attacker to exhaust process memory by providing a crafted image that results in small objects that are allocated but never freed. ==880062== Memcheck, a memory error detector ==880062== Copyright C 2002-2017, and GNU GPL'd, by Julian Seward et al...