A divide by zero issue discovered in eps_print_page in gdevepsn.c in Artifex Software…
Priority MEDIUM 58CWE-369Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-369.
Summary
A divide by zero issue discovered in eps_print_page in gdevepsn.c in Artifex Software GhostScript 9.50 allows remote attackers to cause a denial of service via opening of crafted PDF file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00705 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2024:2966 Released 2024-05-22 · Red Hat rating Lowghostscript security update
- Red Hat Enterprise Linux AppStream (v. 8) ghostscript-9.27-12.el8, ghostscript-x11-9.27-12.el8, libgs-9.27-12.el8
- Red Hat Enterprise Linux CRB (v. 8) ghostscript-doc-9.27-12.el8, ghostscript-tools-dvipdf-9.27-12.el8, ghostscript-tools-fonts-9.27-12.el8 +2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:2966 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:2966 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-21710
- 2026-10-03 Alias added: GHSA-f3hj-4f92-87v9
References
More Artifex Ghostscript vulnerabilities
- TI-2017-05861 Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution… KEVCVSS 3.1HIGH 7.8
- TI-2021-02712 Improper input validation in ghostscript CVSS 3.1CRITICAL 9.9
- TI-2023-13382 In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential… CVSS 3.1CRITICAL 9.8
- TI-2018-11841 An issue was discovered in Artifex Ghostscript before 9.24. CVSS 3.0HIGH 7.8
- TI-2024-19474 Artifex Ghostscript before 10.03.0 has a stack-based buffer overflow in the… CVSS 3.1HIGH 8.8
- TI-2020-14200 Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex… CVSS 3.1HIGH 7.8
Sources
- CVE-2020-21710 · CVE Program
- CVE-2020-21710 · NVD
- FIRST EPSS
- GHSA-f3hj-4f92-87v9 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-21710 · Red Hat security data · CC BY 4.0
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