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CVE-2018-18284

35
FAUCET Score

CVE-2018-18284 is a high-severity vulnerability affecting Artifex Ghostscript versions 9.25 and earlier, as well as products from Canonical, Debian, PulseSecure, and Red Hat. It allows attackers to bypass a sandbox protection mechanism through the 1Policy operator. With a CVSS score of 8.6 (High), this vulnerability has a local attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability, requiring user interaction. While there is no known active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered some community discussion, indicating awareness within the cybersecurity community.

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:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
16.29%
Probability of exploitation in next 30 days
EPSS Percentile
96.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1629 is in the 96th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ghostscript-0:9.07-31.el7_6.6
View patch
gentooworkaround availablevia nvd_reference
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-2018-18284Important

ghostscript: 1Policy operator allows a sandbox protection bypass

Oct 12, 2018

References

git.ghostscript.com
access.redhat.com / errata/RHSA-2018:3834
Third Party Advisory
bugs.chromium.org / p/project-zero/issues/detail
Issue TrackingThird Party Advisory
bugs.ghostscript.com / show_bug.cgi
Issue TrackingPermissions RequiredThird Party Advisory
kb.pulsesecure.net / articles/Pulse_Security_Advisories/SA44101
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00013.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201811-12
MitigationThird Party Advisory
support.f5.com / csp/article/K22141757
usn.ubuntu.com / 3803-1
Third Party Advisory
debian.org / security/2018/dsa-4336
Third Party Advisory
openwall.com / lists/oss-security/2018/10/16/2
ExploitMailing ListPatchThird Party Advisory
securityfocus.com / bid/107451
Third Party AdvisoryVDB Entry