* Ghostscript could become stuck in a loop while running its garbage
collector. Ghostscript would partially render a file, then stop with ghostscript consuming 100% of CPU time. The version of Ghostscript provided with this advisory includes a patch from upstream that makes the memory manager scan all chunks for available free space, where previously it scanned only the currently open chunk. This patch improves Ghostscript's memory utilization and avoids the possibility of the garbage collector becoming stuck in a loop.