CVEs-PoC/2019/CVE-2019-7663.md

### [CVE-2019-7663](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7663)
![](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

An Invalid Address dereference was discovered in TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c in LibTIFF 4.0.10, affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted tiff file. This is different from CVE-2018-12900.

### POC

#### Reference
- http://bugzilla.maptools.org/show_bug.cgi?id=2833
- https://usn.ubuntu.com/3906-1/

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/FritzJo/pacheck
- https://github.com/waugustus/crash_analysis
- https://github.com/waugustus/poc
- https://github.com/waugustus/waugustus