cve/2017/CVE-2017-9239.md

### [CVE-2017-9239](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9239)
![](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 issue was discovered in Exiv2 0.26. When the data structure of the structure ifd is incorrect, the program assigns pValue_ to 0x0, and the value of pValue() is 0x0. TiffImageEntry::doWriteImage will use the value of pValue() to cause a segmentation fault. To exploit this vulnerability, someone must open a crafted tiff file.

### POC

#### Reference
- https://github.com/lolo-pop/poc/tree/master/Segmentation%20fault%20in%20convert-test(exiv2)

#### Github
- https://github.com/andir/nixos-issue-db-example