cve/2017/CVE-2017-18258.md

### [CVE-2017-18258](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18258)
![](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 xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.

### POC

#### Reference
- https://kc.mcafee.com/corporate/index?page=content&id=SB10284

#### Github
- https://github.com/0xfabiof/aws_inspector_parser
- https://github.com/ARPSyndicate/cvemon
- https://github.com/geeknik/cve-fuzzing-poc