Shibboleth 3.0.4 SP External Authentication Handler problem

Gianluca Pindinelli gianluca.pindinelli at
Fri Oct 25 05:37:37 EDT 2019

Hi Scott,
here the request I send:

/curl -k -X POST \//
//  -H 'Accept: */*' \//
//  -H 'Accept-Encoding: gzip, deflate' \//
//  -H 'Cache-Control: no-cache' \//
//  -H 'Connection: keep-alive' \//
//  -H 'Content-Length: 0' \//
//  -H 'Content-Type: application/x-www-form-urlencoded' \//
//  -H 'Host: my-sp-host' \//
//  -H 'cache-control: no-cache'

/The repsonse (error code 500):

/External Authentication Failed/

The error into /var/log/messages:

/Oct 25 11:27:02 localhost shibd: shibd: 
/usr/include/boost/smart_ptr/scoped_ptr.hpp:99: T* 
boost::scoped_ptr<T>::operator->() const [with T = 
shibsp::ResolutionContext]: Assertion `px != 0' failed.//
//Oct 25 11:27:02 localhost shibboleth: ERROR Shibboleth.Listener 
[12577] shib_handler [default]: error reading size of output message//
//Oct 25 11:27:02 localhost shibboleth: ERROR 
Shibboleth.Handler.ExternalAuth [12577] shib_handler [default]: error 
while processing request: Failure receiving response to remoted message 
//Oct 25 11:27:02 localhost systemd: shibd.service: main process exited, 
code=killed, status=6/ABRT//
//Oct 25 11:27:02 localhost systemd: Unit shibd.service entered failed 
//Oct 25 11:27:02 localhost systemd: shibd.service failed.//
//Oct 25 11:27:32 localhost systemd: shibd.service holdoff time over, 
scheduling restart./

Can I do anything else?

Il 24/10/19 13:33, Cantor, Scott ha scritto:
>> Into the other mailing list, Rod and Scott (thanks for your initial support!) suspect then there is a bug which requires
>> more investigation: how can I enable the advanced log to intercept the problem?
> There's nothing to enable, the shibd log will almost certainly have more in it. Either way using External means you should have a sample of what triggered the crash, so just file a bug and attach the data you fed into it.
> -- Scott

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