Vulnerability in Artifex Ghostscript
CVE-2018-19134
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Artifex Ghostscript
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:3834 (vendor-advisory, Third Party Advisory)
- bugs.ghostscript.com/show_bug.cgi (Permissions Required, Third Party Advisory, Issue Tracking)
- git.ghostscript.com/
- semmle.com/news/semmle-discovers-severe-vulnerability-ghostscript-postscript-pdf (Exploit, Third Party Advisory)
- www.securityfocus.com/bid/106278 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/12/msg00019.html (mailing-list, Third Party Advisory)
- www.ghostscript.com/doc/9.26/News.htm (Release Notes)
Frequently asked questions
- What is CVE-2018-19134?
- CVE-2018-19134 is a high-severity vulnerability in Artifex Ghostscript, classified under Incorrect Type Conversion or Cast. CVSS score: 7.8/10. Published 2018-12-20.
- How severe is CVE-2018-19134?
- High severity. CVSS v3 base score is 7.8 out of 10.