cve/2018/CVE-2018-18651.md

CVE-2018-18651

Description

An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.

POC

Reference

• https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747
• https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747

Github

• https://github.com/0xCyberY/CVE-T4PDF
• https://github.com/ARPSyndicate/cvemon