|Date: (C)2009-01-07 (M)2017-10-04|
|CVSS Score: 5.8||Access Vector: NETWORK|
|Exploitability Subscore: 8.6||Access Complexity: MEDIUM|
|Impact Subscore: 4.9||Authentication: NONE|
| ||Confidentiality: NONE|
| ||Integrity: PARTIAL|
| ||Availability: PARTIAL|
OpenSSL 0.9.8i and earlier does not properly check the return value from the EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys.