CVEs-PoC/2017/CVE-2017-9935.md

### [CVE-2017-9935](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9935)
![](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

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

### POC

#### Reference
- http://bugzilla.maptools.org/show_bug.cgi?id=2704
- https://usn.ubuntu.com/3606-1/

#### Github
- https://github.com/project-zot/project-zot.github.io
- https://github.com/project-zot/zot