USN-4245-1: PySAML2 vulnerability

21 January 2020

PySAML2 could be made to bypass signature verification with arbitrary data.

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Releases

Packages

Details

It was discovered that PySAML2 incorrectly handled certain SAML files.
An attacker could possibly use this issue to bypass signature verification
with arbitrary data.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 19.10
Ubuntu 19.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading