Read the docs
TI-2021-02467 Aliases CVE-2021-3508GHSA-wx33-xp59-j4ch

Infinite loop in PDFResurrect

Priority LOW 26CWE-835Published · 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
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-835.

Summary

A flaw was found in PDFResurrect in version 0.22b. There is an infinite loop in get_xref_linear_skipped() in pdf.c via a crafted PDF file.

Why it matters now

EPSS 0.00693 53rd 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

VendorProductAffected versionsFixed inStatusSource
—PDFResurrectPDFResurrect 0.23b—No fix listedCNA
  • PDFResurrect Vendor— Affected PDFResurrect 0.23b Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pdfresurrect_project:pdfresurrect:0.22b:*:*:*:*:*:*:*0.22bVulnerablePdfresurrect Project
  • cpe:2.3:a:pdfresurrect_project:pdfresurrect:0.22b:*:*:*:*:*:*:* Versions 0.22b Vulnerable ·Pdfresurrect Project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3508
  2. 2026-10-03 Alias added: GHSA-wx33-xp59-j4ch

References

  • TI-2019-10623 PDFResurrect 0.15 has a buffer overflow via a crafted PDF file because data associated… CVSS 3.1HIGH 7.8
  • TI-2020-07637 In PDFResurrect 0.12 through 0.19, get_type in pdf.c has an out-of-bounds write via a crafted PDF document. CVSS 3.1HIGH 7.8
  • TI-2020-13924 PDFResurrect before 0.20 lack of header validation checks causes heap-buffer-overflow in pdf_get_version(). CVSS 3.1HIGH 7.8
  • TI-2019-11133 An issue was discovered in PDFResurrect before 0.18. CVSS 3.1HIGH 7.8

Sources