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USN-6400-1: Python vulnerability

27 September 2023

Python could be made to expose sensitive information.

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
  • python3.5 - An interactive high-level object-oriented language

Details

It was discovered that Python did not properly provide constant-time
processing for a crypto operation. An attacker could possibly use this
issue to perform a timing attack and recover sensitive information.

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 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-6891-1: libpython3.7, python3.12-examples, idle-python3.6, python3.11-dev, libpython3.5, python3.12-doc, python3.9-full, libpython3.11, python3.10-full, python3.10-venv, libpython3.5-minimal, libpython3.5-testsuite, libpython3.10-testsuite, python3.5-minimal, python3.11-doc, libpython3.10-minimal, python3.8-examples, libpython3.11-stdlib, libpython3.7-minimal, libpython3.8-testsuite, libpython3.6-testsuite, libpython3.6, libpython3.12, python3.11-full, python3.8, python3.7-dev, libpython3.9-testsuite, libpython3.9-stdlib, python3.10-dev, python3.6-examples, libpython3.11-dev, python3.12-dev, python3.6, python3.9-venv, python3.10-minimal, python3.12-nopie, python3.9-examples, libpython3.12-stdlib, python3.8-doc, idle-python3.12, libpython3.9, python3.11-nopie, python3.12-full, python3.8-venv, libpython3.6-stdlib, python3.7-minimal, python3.12-minimal, libpython3.7-testsuite, python3.9, python3.6-dev, python3.11-venv, idle-python3.7, python3.11, python3.10, idle-python3.11, libpython3.12-testsuite, libpython3.10-stdlib, python3.6-venv, libpython3.10, libpython3.6-dev, libpython3.8-minimal, idle-python3.10, libpython3.7-dev, python3.6-minimal, idle-python3.8, python3.5, libpython3.5-dev, python3.9-dev, python3.6-doc, libpython3.10-dev, libpython3.6-minimal, libpython3.9-minimal, python3.7-examples, python3.10-examples, python3.7-doc, python3.10-nopie, libpython3.12-dev, libpython3.7-stdlib, libpython3.8-dev, python3.8-minimal, python3.5-venv, libpython3.8, python3.5-doc, python3.7-venv, python3.11-minimal, python3.11-examples, python3.5-dev, python3.9-doc, python3.12, python3.5-examples, python3.10-doc, python3.8-dev, libpython3.5-stdlib, python3.8-full, idle-python3.9, libpython3.11-minimal, libpython3.11-testsuite, python3.12-venv, python3.7, libpython3.9-dev, python3.9-minimal, libpython3.12-minimal, idle-python3.5, libpython3.8-stdlib