Entrust Entelligence Security Provider (ESP) before 10.0.60 on Windows mishandles errors during SSL Certificate Validation, leading to situations where (for example) a user continues to interact with a web site that has an invalid certificate chain.

Entrust Entelligence Security Provider (ESP) 8 does not properly validate certificates in certain circumstances involving (1) a chain that omits the root Certification Authority (CA) certificate, or an application that specifies disregarding (2) unknown revocation statuses during path validation or (3) certain errors in the certification path, which might allow context-dependent attackers to spoof certificate authentication. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.