### [CVE-2011-4577](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4577)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20n%2Fa%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

OpenSSL before 0.9.8s and 1.x before 1.0.0f, when RFC 3779 support is enabled, allows remote attackers to cause a denial of service (assertion failure) via an X.509 certificate containing certificate-extension data associated with (1) IP address blocks or (2) Autonomous System (AS) identifiers.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Ananya-0306/vuln-finder
- https://github.com/chnzzh/OpenSSL-CVE-lib
- https://github.com/cve-search/git-vuln-finder
- https://github.com/hrbrmstr/internetdb