What’s Vulnerable › Vulnerabilities

CVE-2020-20740

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-20 · updated 2026-06-17
• Weakness: CWE-787

Description

PDFResurrect before 0.20 lack of header validation checks causes heap-buffer-overflow in pdf_get_version().

Affected products

• Debian Linux: 9.0
• Fedoraproject Fedora: 32, 33
• PDFResurrect: before 0.20 — fixed in 0.20

How to fix

Upgrade to a fixed version: PDFResurrect 0.20. Check the vendor advisory for mitigations.

References

• https://github.com/enferex/pdfresurrect/commit/1b422459f07353adce2878806d5247d9e91fb397
• https://github.com/enferex/pdfresurrect/issues/14
• https://lists.debian.org/debian-lts-announce/2020/12/msg00002.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEEEPBBGER5LPABBRVZLMCC6Z24RBXW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZOIEVFM3SIMAEOFJKKMYH2TLZ7PXLSUD/
• https://github.com/enferex/pdfresurrect/commit/1b422459f07353adce2878806d5247d9e91fb397
• https://github.com/enferex/pdfresurrect/issues/14
• https://lists.debian.org/debian-lts-announce/2020/12/msg00002.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMEEEPBBGER5LPABBRVZLMCC6Z24RBXW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZOIEVFM3SIMAEOFJKKMYH2TLZ7PXLSUD/

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