The ReadJPEGImage function in coders/jpeg.c in GraphicsMagick 1.3.26 creates a pixel cache before a successful read of a scanline, which allows remote attackers to cause a denial of service (resource consumption) via crafted JPEG files.
Updates are available.
The commit mentions:
JNG: Fix double frees caused by changeset 15060:d445af60a8d5 commited on 2017-07-06
However the tag for 1.3.26 was done on:
Tue, 04 Jul 2017 16:31:33 -0500 (9 days ago)
i.e. the issue didn't go in any release
Good to know ago,
*** Bug 629954 has been marked as a duplicate of this bug. ***