CVE-2012-0955: software-properties incorrectly validated TLS certificates

First published: Wed Dec 02 2020(Updated: )

software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.

Credit: security@ubuntu.com

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