Is CVE-2018-16802 in the CISA KEV catalog?

No. CVE-2018-16802 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-16802?

CVE-2018-16802 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-16802?

CVE-2018-16802 has an EPSS score of 2.16% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-16802?

Upgrade ghostscript on debian 11 to 9.25~dfsg-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-16802

HIGHEPSS 80th pctl

7.8

CVSS v3

NVD

Description

An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. This is due to an incomplete fix for CVE-2018-16509.

How to fix

Remediation Available

ghostscriptDebian

Fixed in:9.25~dfsg-1CVE-2018-16802

ghostscriptUbuntu

Fixed in:9.10~dfsg-0ubuntu10.13USN-3768-1

Fixed in:9.18~dfsg~0-0ubuntu2.9USN-3768-1

Fixed in:9.22~dfsg+1-0ubuntu1.2USN-3768-1

libgs9Ubuntu

Fixed in:9.10~dfsg-0ubuntu10.13USN-3768-1

Fixed in:9.18~dfsg~0-0ubuntu2.9USN-3768-1

Fixed in:9.22~dfsg+1-0ubuntu1.2USN-3768-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.16%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Third-Party Advisory7

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.