Just linking this good and recent draft about security assesment of the IPv4. Extract from the introduction:
"There is a clear need for a companion document to the IETF specifications that discusses the security aspects and implications of the protocols, identifies the possible threats, discusses the possible counter-measures, and analyzes their respective effectiveness.
This document is the result of an assessment the IETF specifications of the Internet Protocol (IP), from a security point of view. Possible threats were identified and, where possible, counter-measures were proposed. Additionally, many implementation flaws that have led to security vulnerabilities have been referenced in the hope that future implementations will not incur the same problems".