| Package | Affected versions | Patched versions |
|---|---|---|
| openssl | = 1.0.0a= 1.0.0b= 1.0.0c= 1.0.0d= 1.0.0e= 1.0.0f= 1.0.0g= 1.0.0h= 1.0.0i= 1.0.0j= 1.0.0k= 1.0.0l= 1.0.0m= 1.0.0n= 1.0.0o= 1.0.1a= 1.0.1b= 1.0.1c= 1.0.1d= 1.0.1e= 1.0.1f= 1.0.1g= 1.0.1h= 1.0.1i= 1.0.1j |
The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.
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