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Fencer Intel
high 7.1

CVE-2020-27792 json

Ghostscript: heap buffer over write vulnerability in ghostscript's lp8000_print_page() in gdevlp8k.c

published 4y ago modified 2d ago also EUVD-2020-20294

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

A heap-based buffer overwrite vulnerability was found in GhostScript's lp8000_print_page() function in the gdevlp8k.c file. This flaw allows an attacker to trick a user into opening a crafted PDF file, triggering the heap buffer overflow that could lead to memory corruption or a denial of service.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 8 0:9.27-16.el8_10
  • ghostscript Debian 14, Debian 13, Debian 12 9.51~dfsg-1

debian advisories DEBIAN-CVE-2020-27792

  • ghostscript Ubuntu 18.04 LTS 9.26~dfsg+0-0ubuntu0.18.04.17
  • ghostscript Ubuntu 20.04 LTS 9.50~dfsg-5ubuntu4.6
  • ghostscript Ubuntu Pro 16.04 LTS 9.26~dfsg+0-0ubuntu0.16.04.14+esm4

ubuntu advisories UBUNTU-CVE-2020-27792

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ghostscript RHEL 8 9.27-16.el8_10
  • libgs RHEL 8 9.27-16.el8_10
  • ghostscript-x11 RHEL 8 9.27-16.el8_10
  • ghostscript-tools-fonts RHEL 8 9.27-16.el8_10
  • ghostscript-tools-dvipdf RHEL 8 9.27-16.el8_10
  • ghostscript-tools-printing RHEL 8 9.27-16.el8_10

red hat advisories RHSA-2025:4362

  • ghostscript AlmaLinux 8 9.27-16.el8_10
  • libgs AlmaLinux 8 9.27-16.el8_10
  • ghostscript-x11 AlmaLinux 8 9.27-16.el8_10
  • ghostscript-tools-fonts AlmaLinux 8 9.27-16.el8_10
  • ghostscript-tools-dvipdf AlmaLinux 8 9.27-16.el8_10
  • ghostscript-tools-printing AlmaLinux 8 9.27-16.el8_10

almalinux advisories ALSA-2025:4362

  • ghostscript Rocky Linux 8 9.27-16.el8_10

rocky linux advisories RLSA-2025:4362

Is CVE-2020-27792 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2020-27792 updated cvss 7.1

ghostscript: heap buffer over write vulnerability in GhostScript's lp8000_print_page() in gdevlp8k.c

  • Red Hat Enterprise Linux 6 ghostscript, ghostscript-gtk Red Hat Enterprise Linux 7 libgs, ghostscript, ghostscript-gtk, ghostscript-cups
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) libgs 9.27-16.el8_10, ghostscript 9.27-16.el8_10, ghostscript-x11 9.27-16.el8_10 Red Hat Enterprise Linux CRB (v. 8) ghostscript-tools-fonts 9.27-16.el8_10, ghostscript-tools-dvipdf 9.27-16.el8_10, ghostscript-tools-printing 9.27-16.el8_10
    fixed: vendor fix RHSA-2025:4362
  • 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

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/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
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.