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Fencer Vulns
medium 5.5

CVE-2023-4042 json

Ghostscript: incomplete fix for cve-2020-16305

published 2023-08-23 3 y ago modified 2026-11-07 46 h ago also EUVD-2023-53934

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

A flaw was found in ghostscript. The fix for CVE-2020-16305 in ghostscript was not included in RHSA-2021:1852-06 advisory as it was claimed to be. This issue only affects the ghostscript package as shipped with Red Hat Enterprise Linux 8.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 8 0:9.27-11.el8
  • ghostscript RHEL 8 9.27-11.el8
  • libgs RHEL 8 9.27-11.el8
  • ghostscript-x11 RHEL 8 9.27-11.el8
  • ghostscript-tools-fonts RHEL 8 9.27-11.el8
  • ghostscript-tools-dvipdf RHEL 8 9.27-11.el8
  • ghostscript-tools-printing RHEL 8 9.27-11.el8

red hat advisories RHSA-2023:7053

  • ghostscript AlmaLinux 8 9.27-11.el8
  • libgs AlmaLinux 8 9.27-11.el8
  • ghostscript-x11 AlmaLinux 8 9.27-11.el8
  • ghostscript-tools-fonts AlmaLinux 8 9.27-11.el8
  • ghostscript-tools-dvipdf AlmaLinux 8 9.27-11.el8
  • ghostscript-tools-printing AlmaLinux 8 9.27-11.el8

almalinux advisories ALSA-2023:7053

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-4042 updated cvss 5.5

ghostscript: Incomplete fix for CVE-2020-16305

  • Red Hat Enterprise Linux 8 libgs, ghostscript, ghostscript-x11, ghostscript-tools-fonts, ghostscript-tools-dvipdf, ghostscript-tools-printing
    affected: no fix available
  • Red Hat CodeReady Linux Builder (v. 8) ghostscript-tools-fonts 9.27-11.el8, ghostscript-tools-dvipdf 9.27-11.el8, ghostscript-tools-printing 9.27-11.el8 Red Hat Enterprise Linux AppStream (v. 8) libgs 9.27-11.el8, ghostscript 9.27-11.el8, ghostscript-x11 9.27-11.el8
    fixed: vendor fix RHSA-2023:7053
  • Red Hat Enterprise Linux 6 ghostscript, ghostscript-gtk Red Hat Enterprise Linux 7 libgs, ghostscript, ghostscript-gtk, ghostscript-cups Red Hat Enterprise Linux 9 libgs, ghostscript, ghostscript-x11, ghostscript-tools-fonts, ghostscript-tools-dvipdf, ghostscript-tools-printing
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.