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TI-2020-18423 Aliases CVE-2020-36024GHSA-4pj9-rq3x-vjw5

An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers…

Priority MEDIUM 58CWE-476Published · 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-476.

Summary

An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00532 45th 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freedesktop:poppler:20.12.1:*:*:*:*:*:*:*20.12.1VulnerableFreedesktop
  • cpe:2.3:a:freedesktop:poppler:20.12.1:*:*:*:*:*:*:* Versions 20.12.1 Vulnerable ·Freedesktop

Remediation

Red Hat 1 advisory

  • RHSA-2024:2979 Released 2024-05-22 · Red Hat rating Moderate
    poppler security update
    • Red Hat Enterprise Linux AppStream (v. 8) poppler-20.11.0-11.el8, poppler-glib-20.11.0-11.el8, poppler-qt5-20.11.0-11.el8 +1
    • Red Hat Enterprise Linux CRB (v. 8) poppler-cpp-20.11.0-11.el8, poppler-cpp-devel-20.11.0-11.el8, poppler-devel-20.11.0-11.el8 +3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:2979
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:2979
Not affected: 1 product
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-36024
  2. 2026-10-03 Alias added: GHSA-4pj9-rq3x-vjw5

References

  • TI-2021-11232 Integer overflow in Apple macOS KEVCVSS 3.1HIGH 7.8
  • TI-2025-32126 An issue in the pdfseparate utility of freedesktop poppler v25.04.0 allows attackers to… CVSS 3.1MEDIUM 6.5
  • TI-2022-17985 An issue was discovered in Poppler 22.08.0. CVSS 3.1MEDIUM 6.5
  • TI-2022-17247 A reachable Object::getString assertion in Poppler 22.07.0 allows attackers to cause a… CVSS 3.1MEDIUM 6.5
  • TI-2022-17245 In Poppler 22.07.0, PDFDoc::savePageAs in PDFDoc.c callows attackers to cause a… CVSS 3.1MEDIUM 6.5
  • TI-2020-18422 An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers… CVSS 3.1MEDIUM 6.5
See all 87 →

Sources