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Ubuntu 16.04 ESM USN-5066-2 Moderate: PySAML2 Document Threat

ubuntu
Calendar Grey September 8, 2021
Dist Ubuntu Esm H88
Ubuntu Security Update USN-5066-2: Remedying python-pysaml2 enabling the acceptance of invalid documents.
PySAML2 could be made to accept invalid SAML documents.

Summary

PySAML2 could be made to accept invalid SAML documents.

Software Description:

- python-pysaml2: Pure python implementation of SAML2

Details:

USN-5066-1 fixed a vulnerability in PySAML2. This update provides

the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

Brian Wolff discovered that PySAML2 incorrectly validated cryptographic

signatures. A remote attacker could possibly use this issue to alter SAML

documents.

Topics%20covered

Topics Covered

security advisory update remote attack ubuntu document issue python-pysaml2 cryptographic signature

Update Instructions

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

Ubuntu 16.04 ESM:
  python-pysaml2                  3.0.0-3ubuntu1.16.04.4+esm1
  python3-pysaml2                 3.0.0-3ubuntu1.16.04.4+esm1

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

References

https://ubuntu.com/security/notices/USN-5066-2

https://ubuntu.com/security/notices/USN-5066-1

CVE-2021-21239

September 08, 2021

Topics%20covered

Topics Covered

security advisory update remote attack ubuntu document issue python-pysaml2 cryptographic signature

Package Information

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