psi/zdevice2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because available stack space is not checked when the device remains the same.Referenceshttps://www.debian.org/security/2018/dsa-4346https://access.redhat.com/errata/RHSA-2019:0229https://usn.ubuntu.com/3831-1/http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=3005fcb9bb160af199e761e03bc70a9f249a987ehttps://bugs.ghostscript.com/show_bug.cgi?id=700153https://semmle.com/news/semmle-discovers-severe-vulnerability-ghostscript-postscript-pdfhttp://www.securityfocus.com/bid/106154https://lists.debian.org/debian-lts-announce/2018/11/msg00036.htmlhttps://www.ghostscript.com/doc/9.26/History9.htm#Version9.26http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=aeea342904978c9fe17d85f4906a0f6fcce2d315https://access.redhat.com/errata/RHBA-2019:0327
