CVE-2017-11185

CVE-2017-11185 describes a denial-of-service vulnerability affecting strongSwan versions prior to 5.6.0. Specifically, the gmp plugin is susceptible to a NULL pointer dereference, leading to a daemon crash, when processing a specially crafted RSA signature. This vulnerability is rated as High severity (CVSS 7.5), indicating it can be exploited remotely without authentication or user interaction, resulting in a complete loss of availability for affected systems. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.