Vulnerability Description
In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a pattern dictionary was a structure type.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Artifex | Ghostscript | <= 9.25 |
| Debian | Debian Linux | 8.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=693baf02152119af6e
- http://www.securityfocus.com/bid/106278Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3834Third Party Advisory
- https://bugs.ghostscript.com/show_bug.cgi?id=700141Issue TrackingPermissions RequiredThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00019.htmlThird Party Advisory
- https://semmle.com/news/semmle-discovers-severe-vulnerability-ghostscript-postscExploitThird Party Advisory
- https://www.ghostscript.com/doc/9.26/News.htmRelease Notes
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=693baf02152119af6e
- http://www.securityfocus.com/bid/106278Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3834Third Party Advisory
- https://bugs.ghostscript.com/show_bug.cgi?id=700141Issue TrackingPermissions RequiredThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00019.htmlThird Party Advisory
- https://semmle.com/news/semmle-discovers-severe-vulnerability-ghostscript-postscExploitThird Party Advisory
- https://www.ghostscript.com/doc/9.26/News.htmRelease Notes
FAQ
What is CVE-2018-19134?
CVE-2018-19134 is a vulnerability with a CVSS score of 7.8 (HIGH). In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, exec...
How severe is CVE-2018-19134?
CVE-2018-19134 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-19134?
Check the references section above for vendor advisories and patch information. Affected products include: Artifex Ghostscript, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus.