Reproduced on GS 9.10 built from sources (http://downloads.ghostscript.com/public/ghostscript-9.10.tar.gz)
More details will be release in a private attachment.
PS: Would it be possible to add "Security" to the list of "Components"?
A CVE was requested from MITRE and the following was assigned.
Please use this CVE as reference in patching or info dissemination related to this particular issue.
I've added the details in a private comment and will investigate the reported issue.