### [CVE-2009-0591](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0591) ![](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 The CMS_verify function in OpenSSL 0.9.8h through 0.9.8j, when CMS is enabled, does not properly handle errors associated with malformed signed attributes, which allows remote attackers to repudiate a signature that originally appeared to be valid but was actually invalid. ### POC #### Reference No PoCs from references. #### Github - https://github.com/ARPSyndicate/cvemon - https://github.com/chnzzh/OpenSSL-CVE-lib