CVEs-PoC/2016/CVE-2016-4294.md

### [CVE-2016-4294](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4294)
![](https://img.shields.io/static/v1?label=Product&message=Hancom%20Office&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=unspecified&color=brighgreen)

### Description

When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.

### POC

#### Reference
- http://www.talosintelligence.com/reports/TALOS-2016-0149/

#### Github
No PoCs found on GitHub currently.