TI-2020-18163 Aliases CVE-2020-35702 GHSA-fcqx-5rp6-c5pj

DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow…

LOW 36CWE-787Published 2020-12-25 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document. NOTE: later reports indicate that this only affects builds from Poppler git clones in late December 2020, not the 20.12.1 release. In this situation, it should NOT be considered a Poppler vulnerability. However, several third-party Open Source projects directly rely on Poppler git clones made at arbitrary times, and therefore the CVE remains useful to users of those projects

Why it matters now

EPSS 0.00871 59th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

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

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:freedesktop:poppler:20.12.1:::::::*	20.12.1	Vulnerable	Freedesktop

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

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

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

Not affected: 5 products

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2020-35702
2026-10-03 Alias added: GHSA-fcqx-5rp6-c5pj

References

Exploit 1

https://gitlab.freedesktop.org/poppler/poppler/-/issues/1011

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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences