PT-2019-5103 · Artifex+5 · Ghostscript+5
Lukas Schauer
+1
·
Published
2019-11-14
·
Updated
2020-10-25
·
CVE-2019-14869
CVSS v2.0
9.3
High
| Vector | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
ghostscript versions 9.x before 9.50
Description
A flaw in the
.charkeys procedure of ghostscript allows scripts to bypass -dSAFER restrictions by not properly securing its privileged calls. This enables an attacker to create a specially crafted PostScript file that could escalate privileges within Ghostscript, access files outside of restricted areas, or execute commands. The exploitation of this flaw may allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service.Recommendations
For ghostscript versions 9.x before 9.50, update to version 9.50 or later to resolve the issue. As a temporary workaround, consider restricting access to the
.charkeys procedure to minimize the risk of exploitation. Avoid using the -dSAFER restrictions in affected versions until the issue is resolved.Fix
Incorrect Permission
Improper Privilege Management
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Related Identifiers
Affected Products
Alt Linux
Centos
Red Hat
Suse
Ubuntu
Ghostscript