cve/2018/CVE-2018-20751.md

CVE-2018-20751

Description

An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.

POC

Reference

• https://research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-crop_page-podofo-0-9-6/
• https://research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-crop_page-podofo-0-9-6/
• https://sourceforge.net/p/podofo/tickets/33/
• https://sourceforge.net/p/podofo/tickets/33/

Github

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