CVE-2018-16863

ghostscript: incomplete fix for CVE-2018-16509

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Severity

Important

Red Hat Product Security

7.3

CVSS 3.0

Review impact separately from score.

Published · December 3, 2018

Updated · November 22, 2025

Description

It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document.

Statement

This vulnerability affects only Red Hat Enterprise Linux version 7. Red Hat Enterprise Linux version 6 is not affected by this vulnerability because the set of fixes for CVE-2018-16509, released via RHSA-2018:3760, was complete.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE-184 · Incomplete List of Disallowed Inputs