漏洞描述
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.
影响产品
暂无结构化产品信息。
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
git.ghostscript.comhttp://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33662a2afdc377159f70218e67bde5↗git.ghostscript.comhttp://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d590b4a91afac2e8417360b934156↗bugs.ghostscript.comhttps://bugs.ghostscript.com/show_bug.cgi?id=699654↗security.gentoo.orghttps://security.gentoo.org/glsa/201811-12↗seclists.orghttp://seclists.org/oss-sec/2018/q3/142↗git.ghostscript.comhttp://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=520bb0ea7519aa3e79db78aaf0589dae02103764↗git.ghostscript.comhttp://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486a6595c43f1de1cd7ade696020a31↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2018:3760↗www.artifex.comhttps://www.artifex.com/news/ghostscript-security-resolved/↗usn.ubuntu.comhttps://usn.ubuntu.com/3768-1/↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2018/09/msg00015.html↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2018:2918↗www.debian.orghttps://www.debian.org/security/2018/dsa-4294↗www.securityfocus.comhttp://www.securityfocus.com/bid/105122↗