cve/2019/CVE-2019-18197.md

### [CVE-2019-18197](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18197)
![](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

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpuapr2020.html

#### Github
- https://github.com/yauh-ask/image_security_linting