fix: avoid never ending loop when peer sends close notify during TLS handshake#142
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felipeek wants to merge 1 commit intowildfly-security:mainfrom
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superseded by #143 |
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When acting as a client, if the peer sends a closeNotify message during the TLS handshake, a bug may occur in which wildfly becomes stuck in the
unwraporwrapfunctions. This happens because the underlyingsslEngine.[un]wrapfunctions eventually return a result with status CLOSED and with 0 bytes consumed, but the caller does not handle it properly, and simply proceed to the next iteration even though no data was consumed.This issue is easily reproduced by setting up a custom TLS server that forcefully emits closeNotify messages during the handshake, using wildfly engine as a client connection, and observing the behavior.
The proposed modifications seems to fix the issue.