strongSwan 4.6.4 fixes a security vulnerability which affects all versions since 4.2.0 if the gmp plugin is used for RSA signature verification.
RSA signature verification vulnerability
This release fixes a security vulnerability (CVE-2012-2388) which exists in all versions since 4.2.0 and up to 4.6.3. If the gmp plugin is used for RSA signature verification (the default on many platforms) an empty or zeroed signature is handled as a legitimate one. Both IKEv1 and IKEv2 are affected.
A connection definition using RSA authentication is required to exploit this vulnerability. Given that, an attacker presenting a forged signature and/or certificate can authenticate as any legitimate user. Injecting code is not possible by such an attack.
- The behavior of the IKEv2 daemon charon during reauthentication and mobility has been improved in several corner cases. Especially in situations where MOBIKE is disabled or not supported by the other peer.
Download it from here.