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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Cyassl | Yassl | * | 2.9.0 |
| Cyassl | Yassl | 2.0.6 | 2.0.6 |
| Cyassl | Yassl | 2.0.2 | 2.0.2 |
| Cyassl | Yassl | 1.1.0 | 1.1.0 |
| Cyassl | Yassl | 1.6.0 | 1.6.0 |
| Cyassl | Yassl | 2.3.0 | 2.3.0 |
| Cyassl | Yassl | 1.0.0 | 1.0.0 |
| Cyassl | Yassl | 1.5.6 | 1.5.6 |
| Cyassl | Yassl | 1.2.0 | 1.2.0 |
| Cyassl | Yassl | 0.5.5 | 0.5.5 |
| Cyassl | Yassl | 0.4.0 | 0.4.0 |
| Cyassl | Yassl | 0.5.0 | 0.5.0 |
| Cyassl | Yassl | 0.8.0 | 0.8.0 |
| Cyassl | Yassl | 0.9.9 | 0.9.9 |
| Cyassl | Yassl | 2.0.0 | 2.0.0 |
| Cyassl | Yassl | 2.6.0 | 2.6.0 |
| Cyassl | Yassl | 1.0.0 | 1.0.0 |
| Cyassl | Yassl | 1.8.0 | 1.8.0 |
| Cyassl | Yassl | 0.3.0 | 0.3.0 |
| Cyassl | Yassl | 1.0.0 | 1.0.0 |
| Cyassl | Yassl | 2.0.8 | 2.0.8 |
| Cyassl | Yassl | 1.0.3 | 1.0.3 |
| Cyassl | Yassl | 2.0.0 | 2.0.0 |
| Cyassl | Yassl | 2.4.6 | 2.4.6 |
| Cyassl | Yassl | 1.5.4 | 1.5.4 |
| Cyassl | Yassl | 0.9.0 | 0.9.0 |
| Cyassl | Yassl | 0.2.0 | 0.2.0 |
| Cyassl | Yassl | 0.9.6 | 0.9.6 |
| Cyassl | Yassl | 1.6.5 | 1.6.5 |
| Cyassl | Yassl | 1.3.0 | 1.3.0 |
| Cyassl | Yassl | 1.4.0 | 1.4.0 |
| Cyassl | Yassl | 1.0.2 | 1.0.2 |
| Cyassl | Yassl | 1.9.0 | 1.9.0 |
| Cyassl | Yassl | 1.5.0 | 1.5.0 |
| Cyassl | Yassl | 0.6.0 | 0.6.0 |
| Cyassl | Yassl | 2.7.0 | 2.7.0 |
| Cyassl | Yassl | 2.0.0 | 2.0.0 |
| Cyassl | Yassl | 2.4.0 | 2.4.0 |
| Cyassl | Yassl | 0.6.2 | 0.6.2 |
| Cyassl | Yassl | 2.8.0 | 2.8.0 |
| Cyassl | Yassl | 0.6.3 | 0.6.3 |
| Cyassl | Yassl | 2.2.0 | 2.2.0 |
| Cyassl | Yassl | 1.0.6 | 1.0.6 |
| Cyassl | Yassl | 0.9.8 | 0.9.8 |
| Cyassl | Yassl | 2.5.0 | 2.5.0 |