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.
Metrics
CVSS 2.0 5.8/10
AV:N/AC:M/Au:N/C:P/I:P/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://seclists.org/oss-sec/2014/q2/126
- http://seclists.org/oss-sec/2014/q2/130
- http://secunia.com/advisories/57743Vendor Advisory
- http://www.securityfocus.com/bid/66780
- http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
- http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html
- https://security.gentoo.org/glsa/201612-53
- http://seclists.org/oss-sec/2014/q2/126
- http://seclists.org/oss-sec/2014/q2/130
- http://secunia.com/advisories/57743Vendor Advisory
- http://www.securityfocus.com/bid/66780
- http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
- http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html
- https://security.gentoo.org/glsa/201612-53
Timeline
- Published
- Apr 22, 2014
- Last modified
- Jun 17, 2026
- NVD status
- Modified