Vulnerability CVE-2014-2900
Published: 2014-04-22

Description:
wolfSSL CyaSSL before 2.9.4 does not properly validate X.509 certificates with unknown critical extensions, which allows man-in-the-middle attackers to spoof servers via crafted X.509 certificate.

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Yassl -> Cyassl 

 References:
http://seclists.org/oss-sec/2014/q2/126
http://seclists.org/oss-sec/2014/q2/130
http://www.securityfocus.com/bid/66780
http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html
http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html
https://security.gentoo.org/glsa/201612-53
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