cve/2016/CVE-2016-4542.md

### [CVE-2016-4542](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4542)
![](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 exif_process_IFD_TAG function in ext/exif/exif.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 does not properly construct spprintf arguments, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.

### POC

#### Reference
- https://bugs.php.net/bug.php?id=72094
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

#### Github
- https://github.com/heckintosh/modified_uploadscanner
- https://github.com/modzero/mod0BurpUploadScanner
- https://github.com/mrhacker51/FileUploadScanner
- https://github.com/navervn/modified_uploadscanner