First published: Fri Jan 09 2015(Updated: )
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.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
OpenSSL OpenSSL | =1.0.0a | |
OpenSSL OpenSSL | =1.0.0b | |
OpenSSL OpenSSL | =1.0.0c | |
OpenSSL OpenSSL | =1.0.0d | |
OpenSSL OpenSSL | =1.0.0e | |
OpenSSL OpenSSL | =1.0.0f | |
OpenSSL OpenSSL | =1.0.0g | |
OpenSSL OpenSSL | =1.0.0h | |
OpenSSL OpenSSL | =1.0.0i | |
OpenSSL OpenSSL | =1.0.0j | |
OpenSSL OpenSSL | =1.0.0k | |
OpenSSL OpenSSL | =1.0.0l | |
OpenSSL OpenSSL | =1.0.0m | |
OpenSSL OpenSSL | =1.0.0n | |
OpenSSL OpenSSL | =1.0.0o | |
OpenSSL OpenSSL | =1.0.1a | |
OpenSSL OpenSSL | =1.0.1b | |
OpenSSL OpenSSL | =1.0.1c | |
OpenSSL OpenSSL | =1.0.1d | |
OpenSSL OpenSSL | =1.0.1e | |
OpenSSL OpenSSL | =1.0.1f | |
OpenSSL OpenSSL | =1.0.1g | |
OpenSSL OpenSSL | =1.0.1h | |
OpenSSL OpenSSL | =1.0.1i | |
OpenSSL OpenSSL | =1.0.1j |
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