CVE-2018-16509
ghostscript - security update
7.8
HIGH
CVSS 3.1
EPSS 91.8%
Description
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.
How to fix CVE-2018-16509
To remediate CVE-2018-16509, upgrade the affected package to a fixed version below.
- Debian/ghostscript—upgrade to 9.25~dfsg-1 or later
- —upgrade to 9.20~dfsg-3.2+deb9u5 or later
Is CVE-2018-16509 being exploited?
Likely — EPSS is 91.8%, placing CVE-2018-16509 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 9.25~dfsg-1
- from 0, < 9.20~dfsg-3.2+deb9u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |