ESB-2017.2131 - [Ubuntu] python-pysaml2 : Access confidential data - Remote/unauthenticated 2017-08-25

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2131
                           PySAML2 vulnerability
                              25 August 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           python-pysaml2
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
                   Denial of Service        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-10149  

Reference:         ESB-2017.0959

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3402-1

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USN-3402-1: PySAML2 vulnerability 

Ubuntu Security Notice USN-3402-1 24th 

August, 2017

python-pysaml2 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 17.04 
Ubuntu 16.04 LTS 

Summary

The system could be made to expose sensitive information.

Software description

python-pysaml2 - Pure python implementation of SAML2 

Details

It was discovered that PySAML2 incorrectly handled certain SAML XML requests 
and responses. A remote attacker could use this issue to read arbitrary files.

Update instructions

The problem can be corrected by updating your system to the following package
version:

Ubuntu 17.04: 
python-pysaml2 3.0.0-3ubuntu1.17.04.1 
python3-pysaml2 3.0.0-3ubuntu1.17.04.1 

Ubuntu 16.04 LTS: 
python-pysaml2 3.0.0-3ubuntu1.16.04.1
python3-pysaml2 3.0.0-3ubuntu1.16.04.1 

To update your system, please follow 
these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

CVE-2016-10149

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