[keycloak-user] silent ssl error in debug level

[Bruno Oliveira]

Could you please provide more information about your environment and
which version of KC are you running? Is this happening with Chrome for
example? See:
https://bugs.chromium.org/p/chromium/issues/detail?id=118366

On 2016-04-19, Jukka Sirviö wrote:
> Hello,
>
> Anybody have any clue what could be causing this "silent exception" when DEBUG level logging is used, to SP's log. IOException is written to log all the time. Thus SAML authentication is working ok / normally. Using SSL (https) public addresses both with IDP and SP, along with signed & encrypted SAML assertions. Public certificates are good and ok!
>
>
>
> 2016-04-19 13:25:26,441 DEBUG [io.undertow.request.io] (default I/O-8) UT005013: An IOException occurred: java.io.IOException: javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack?
>
>                              at io.undertow.protocols.ssl.SslConduit.notifyReadClosed(SslConduit.java:577)
>
>                              at io.undertow.protocols.ssl.SslConduit.terminateReads(SslConduit.java:178)
>
>                              at org.xnio.conduits.ConduitStreamSourceChannel.close(ConduitStreamSourceChannel.java:168)
>
>                              at org.xnio.IoUtils.safeClose(IoUtils.java:134)
>
>                              at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.forceTermination(ReadReadyHandler.java:58)
>
>                              at io.undertow.protocols.ssl.SslConduit$SslReadReadyHandler.forceTermination(SslConduit.java:1091)
>
>                              at org.xnio.nio.NioSocketConduit.forceTermination(NioSocketConduit.java:105)
>
>                              at org.xnio.nio.WorkerThread.run(WorkerThread.java:492)
>
> Caused by: javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack?
>
>                              at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
>
>                              at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1666)
>
>                              at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1634)
>
>                              at sun.security.ssl.SSLEngineImpl.closeInbound(SSLEngineImpl.java:1561)
>
>                              at io.undertow.protocols.ssl.SslConduit.notifyReadClosed(SslConduit.java:575)
>
>                              ... 7 more
>
>
>
>
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