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USN-5960-1: Python vulnerability

16 March 2023

Python could be made to bypass blocklisting methods if a specially crafted URL was provided.

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

Releases

Packages

  • python2.7 - An interactive high-level object-oriented language
  • python3.10 - An interactive high-level object-oriented language
  • python3.5 - An interactive high-level object-oriented language
  • python3.6 - An interactive high-level object-oriented language
  • python3.8 - An interactive high-level object-oriented language

Details

Yebo Cao discovered that Python incorrectly handled certain URLs.
An attacker could possibly use this issue to bypass blocklisting
methods by supplying a URL that starts with blank characters.

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 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

Related notices

  • USN-5888-1: idle-python3.9, python3.9-dev, python3.9, libpython3.9-dev, python3.9-venv, libpython3.9-testsuite, python3.9-doc, libpython3.9, libpython3.9-stdlib, python3.9-minimal, python3.9-full, libpython3.9-minimal, python3.9-examples
  • USN-6139-1: libpython3.10, libpython3.11, libpython3.8-minimal, python3.8-doc, libpython3.6-dev, libpython3.5-stdlib, idle-python2.7, libpython3.8-testsuite, python3.8, python3.5-dev, python3.11, idle-python3.11, libpython3.5-testsuite, libpython3.6, python3.10-venv, python3.8-dev, libpython3.10-testsuite, python3.6-examples, python3.10-nopie, libpython3.6-minimal, python2.7-examples, python3.10-full, python2.7-doc, python2.7-dev, python3.10-examples, python3.11-venv, libpython3.8, idle-python3.8, python3.5-venv, libpython2.7, libpython3.5-minimal, libpython3.6-stdlib, libpython3.11-testsuite, python3.5-examples, python3.5-doc, python3.11-doc, python3.11-minimal, libpython3.10-minimal, libpython2.7-dev, python3.10, idle-python3.5, libpython3.11-stdlib, python2.7-minimal, python3.6-venv, python3.8-minimal, python3.6-dev, python3.11-nopie, python3.6, python3.5-minimal, libpython2.7-minimal, libpython2.7-testsuite, libpython3.6-testsuite, python2.7, idle-python3.10, libpython3.8-dev, python3.10-dev, python3.8-venv, idle-python3.6, libpython2.7-stdlib, python3.10-doc, python3.10-minimal, libpython3.11-minimal, python3.5, python3.8-full, libpython3.11-dev, python3.11-examples, libpython3.8-stdlib, python3.6-doc, libpython3.10-dev, python3.11-dev, libpython3.10-stdlib, libpython3.5, python3.11-full, python3.6-minimal, libpython3.5-dev, python3.8-examples