### [CVE-2019-3565](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3565)
![](https://img.shields.io/static/v1?label=Product&message=Facebook%20Thrift&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=!%3D%3E%20v2019.05.06.00%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Excessive%20Iteration%20(CWE-834)&color=brighgreen)

### Description

Legacy C++ Facebook Thrift servers (using cpp instead of cpp2) would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.05.06.00.

### POC

#### Reference
- https://www.facebook.com/security/advisories/cve-2019-3565

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