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CVE-2018-18073

23
FAUCET Score

CVE-2018-18073 is a medium-severity vulnerability affecting Artifex Ghostscript, as well as Canonical, Debian, and Red Hat distributions. It allows attackers to bypass sandbox protection by exploiting the exposure of system operators within the saved execution stack of an error object. The attack requires local access and user interaction, but if successful, could lead to high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.25CPE matchmatch criteria
cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.73%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0273 is in the 94th percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ghostscript-0:9.07-31.el7_6.6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ghostscript
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ghostscript

Vendor Advisories (1)

redhatCVE-2018-18073Important

ghostscript: Saved execution stacks can leak operator arrays

Oct 9, 2018

References

git.ghostscript.com
packetstormsecurity.com / files/149758/Ghostscript-Exposed-System-Operators.html
Third Party AdvisoryVDB Entry
access.redhat.com / errata/RHSA-2018:3834
Third Party Advisory
bugs.chromium.org / p/project-zero/issues/detail
Issue TrackingPatchThird Party Advisory
bugs.ghostscript.com / show_bug.cgi
Issue TrackingPatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00013.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3803-1
Third Party Advisory
debian.org / security/2018/dsa-4336
Third Party Advisory
openwall.com / lists/oss-security/2018/10/10/12
Mailing ListPatchThird Party Advisory