Vulnerability in RSA Implementation of strongSwan Affects Secure Communications
CVE-2018-16152

7.5HIGH

Key Information:

Vendor: Strongswan
Status: Strongswan
Vendor: CVE Published:; 26 September 2018

What is CVE-2018-16152?

In the strongSwan gmp plugin, an issue exists in the verify_emsa_pkcs1_signature() function that inadequately handles excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. This flaw enables remote attackers to forge RSA signatures, particularly when small public exponents are in use, potentially leading to unauthorized impersonation during IKEv2 authentication. This vulnerability is similar to previously reported issues, raising concerns for secure communication protocols reliant on RSA signatures.