Provide references for CVE-2017-17858.
Where can I find more information about CVE-2017-17858?
References are available at: https://security.gentoo.org/glsa/201811-15, https://bugs.ghostscript.com/show_bug.cgi?id=698819, https://github.com/mzet-/Security-Advisories/blob/master/mzet-adv-2017-01.md, http://git.ghostscript.com/?p=mupdf.git%3Ba=commit%3Bh=55c3f68d638ac1263a386e0aaa004bb6e8bde731.