### [CVE-2018-18459](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18459)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The function DCTStream::getBlock in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.

### POC

#### Reference
- https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm
- https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm

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