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Posted to dev@qpid.apache.org by "Clifford Jansen (Jira)" <ji...@apache.org> on 2022/04/19 14:40:00 UTC

[jira] [Created] (PROTON-2535) TLS library - false indication of user data in OpenSSL

Clifford Jansen created PROTON-2535:
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             Summary: TLS library - false indication of user data in OpenSSL
                 Key: PROTON-2535
                 URL: https://issues.apache.org/jira/browse/PROTON-2535
             Project: Qpid Proton
          Issue Type: Bug
          Components: proton-c
    Affects Versions: proton-c-0.37.0
         Environment: OpenSSL
            Reporter: Clifford Jansen
            Assignee: Clifford Jansen


pn_tls_need_decrypt_output_buffers can falsely indicate the availability of user data.  For example if there is a handshake failure, BIO_pending can indicate the presence of bytes but BIO_read will return -1 and the appropriate error.

An application may be fooled into providing a decrypt output buffer that won't be immediately be returned after the next pn_tls_process() step, since no bytes will be read into it.



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