The OpenSSL::OCSP module for Ruby in Apple Mac OS X 10.5 before 10.5.7 misinterprets an unspecified invalid response as a successful OCSP certificate validation, which might allow remote attackers to spoof certificate authentication via a revoked certificate.
Exploitability
AV:NAC:LAu:NImpact
C:NI:PA:P6.4/AV:N/AC:L/Au:N/C:N/I:P/A:P