cve/2019/CVE-2019-20427.md

### [CVE-2019-20427](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20427)
![](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 the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

### POC

#### Reference
- http://lustre.org/
- http://wiki.lustre.org/Lustre_2.12.3_Changelog

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