A flaw was found in all versions of ghostscript 9.x before 9.50, where the `.charkeys` procedure, where it did not properly secure its privileged calls, enabling scripts to bypass `-dSAFER` restrictions. An attacker could abuse this flaw by creating a specially crafted PostScript file that could escalate privileges within the Ghostscript and access files outside of restricted areas or execute commands.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
- CVSS 3.0 Base Score: 7.3
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-ghostscript | Jan 5, 2021 | Nov 15, 2019 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-ghostscriptamazon-linux-ami-2-upgrade-ghostscript-cupsamazon-linux-ami-2-upgrade-ghostscript-debuginfoamazon-linux-ami-2-upgrade-ghostscript-docamazon-linux-ami-2-upgrade-ghostscript-gtkamazon-linux-ami-2-upgrade-libgsamazon-linux-ami-2-upgrade-libgs-devel | Feb 22, 2021 | Nov 15, 2019 | |
| Centos_linux | — | centos-upgrade-ghostscriptcentos-upgrade-ghostscript-cupscentos-upgrade-ghostscript-debuginfocentos-upgrade-ghostscript-debugsourcecentos-upgrade-ghostscript-doccentos-upgrade-ghostscript-gtkcentos-upgrade-ghostscript-gtk-debuginfocentos-upgrade-ghostscript-x11-debuginfocentos-upgrade-libgscentos-upgrade-libgs-debuginfocentos-upgrade-libgs-devel | Nov 15, 2019 | Nov 14, 2019 |
| Debian | debian-upgrade-ghostscript | Nov 18, 2019 | Nov 15, 2019 | |
| Ghostscript | ghostscript-upgrade-9_50 | Dec 6, 2019 | Nov 15, 2019 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-ghostscripthuawei-euleros-2_0_sp8-upgrade-libgs | Jan 3, 2020 | Nov 15, 2019 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-desktop-pdf-viewer-gsx-9-52-11-4-27-0-1-82-0oracle-solaris-11-4-upgrade-image-ghostscript-9-52-11-4-27-0-1-82-0 | Jan 19, 2021 | Nov 15, 2019 | |
| Oracle_linux | — | oracle-linux-upgrade-ghostscriptoracle-linux-upgrade-ghostscript-cupsoracle-linux-upgrade-ghostscript-docoracle-linux-upgrade-ghostscript-gtkoracle-linux-upgrade-ghostscript-tools-dvipdforacle-linux-upgrade-ghostscript-tools-fontsoracle-linux-upgrade-ghostscript-tools-printingoracle-linux-upgrade-ghostscript-x11oracle-linux-upgrade-libgsoracle-linux-upgrade-libgs-devel | Oct 5, 2022 | Nov 14, 2019 |
| Redhat_linux | redhat-upgrade-ghostscriptredhat-upgrade-ghostscript-cupsredhat-upgrade-ghostscript-debuginforedhat-upgrade-ghostscript-debugsourceredhat-upgrade-ghostscript-docredhat-upgrade-ghostscript-gtkredhat-upgrade-ghostscript-gtk-debuginforedhat-upgrade-ghostscript-tools-dvipdfredhat-upgrade-ghostscript-tools-fontsredhat-upgrade-ghostscript-tools-printingredhat-upgrade-ghostscript-x11redhat-upgrade-ghostscript-x11-debuginforedhat-upgrade-libgsredhat-upgrade-libgs-debuginforedhat-upgrade-libgs-devel | Nov 15, 2019 | Nov 14, 2019 | |
| Suse | — | suse-upgrade-ghostscriptsuse-upgrade-ghostscript-develsuse-upgrade-ghostscript-minisuse-upgrade-ghostscript-mini-develsuse-upgrade-ghostscript-x11 | Nov 16, 2019 | Nov 14, 2019 |
| Ubuntu | ubuntu-upgrade-ghostscriptubuntu-upgrade-libgs9 | Nov 15, 2019 | Nov 14, 2019 |
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