CVE-2018-16152: High severity strongSwan Strongswan vulnerability
In verifyemsapkcs1signature() in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2018-16152?
CVE-2018-16152 is a vulnerability in the RSA implementation based on GMP in the gmp plugin in strongSwan before version 5.7.0 that allows a remote attacker to f
What is the severity of CVE-2018-16152?
CVE-2018-16152 has a severity rating of 7.5 (High).
Which versions of strongSwan are affected by CVE-2018-16152?
strongSwan versions 4.x and 5.x before version 5.7.0 are affected by CVE-2018-16152.
How do I fix CVE-2018-16152?
To fix CVE-2018-16152, update your strongSwan installation to version 5.7.0 or later.
Where can I find more information about CVE-2018-16152?
You can find more information about CVE-2018-16152 at the following references: [Reference 1](https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-%28cve-2018-16151,-cve-2018-16152%29.html), [Reference 2](https://lists.debian.org/debian-lts-announce/2018/09/msg00032.html), [Reference 3](https://www.debian.org/security/2018/dsa-4305).