USN-4754-4: Python 2.7 vulnerability
3 March 2021
Python could be made to execute arbitrary code or denial of service if it received a specially crafted input.
Releases
Packages
- python2.7 - An interactive high-level object-oriented language
Details
USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a
subsequent update removed the fix for CVE-2021-3177. This update reinstates
the security fix for CVE-2021-3177.
We apologize for the inconvenience.
Original advisory details:
It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)
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-4754-1: libpython2.7-minimal, python3.4, python3.5-doc, python3.4-minimal, libpython3.6-stdlib, python3.6-minimal, libpython3.4-stdlib, libpython2.7-stdlib, idle-python3.6, python3.4-dev, libpython3.5-minimal, python3.8-venv, libpython3.8-testsuite, python2.7-examples, idle-python3.4, libpython2.7, libpython3.6-minimal, libpython3.5-stdlib, libpython3.8-dev, libpython3.4, python3.4-doc, python3.5, python3.6-examples, libpython3.5-dev, python3.6-dev, idle-python3.8, python3.8, libpython3.6-dev, python3.8-doc, libpython3.5-testsuite, python3.6, python3.5-examples, libpython3.6, idle-python2.7, python2.7, libpython3.8, python3.5-dev, python3.5-minimal, python3.6-doc, python3.8-examples, libpython2.7-testsuite, libpython2.7-dev, python3.4-examples, libpython3.8-stdlib, libpython3.4-minimal, python2.7-doc, libpython3.5, python3.8-minimal, libpython3.6-testsuite, libpython3.4-dev, python2.7-minimal, python3.5-venv, idle-python3.5, python2.7-dev, python3.6-venv, python3.8-dev, python3.4-venv, libpython3.8-minimal, libpython3.4-testsuite
- USN-4754-3: python3.7-dev, libpython2.7-minimal, libpython3.7-stdlib, libpython2.7-stdlib, python3.8-venv, python3.7-doc, libpython3.8-testsuite, python2.7-examples, libpython2.7, libpython3.8-dev, idle-python3.8, python3.8, python3.7, idle-python2.7, python2.7, libpython3.8, libpython3.7-testsuite, libpython3.7-minimal, libpython3.7, idle-python3.7, python3.8-examples, python3.7-examples, libpython2.7-testsuite, libpython2.7-dev, libpython3.8-stdlib, python3.7-minimal, python2.7-doc, python3.8-minimal, python2.7-minimal, python3.8-dev, python2.7-dev, libpython3.7-dev, libpython3.8-minimal, python3.7-venv
- USN-4754-5: idle-python2.7, libpython2.7-minimal, python2.7, python2.7-doc, libpython2.7-stdlib, python2.7-minimal, libpython2.7-testsuite, python2.7-dev, libpython2.7-dev, python2.7-examples, libpython2.7
- USN-6891-1: libpython3.7-stdlib, libpython3.12-minimal, python3.8-venv, libpython3.6-minimal, python3.6-examples, libpython3.11-stdlib, idle-python3.8, libpython3.11-dev, python3.12-full, python3.8-doc, python3.5-examples, python3.11, libpython3.7-minimal, python3.5-minimal, python3.6-doc, idle-python3.12, python3.7-examples, idle-python3.10, python3.11-minimal, libpython3.8-stdlib, libpython3.10-testsuite, python3.8-minimal, python3.5-venv, python3.8-dev, python3.11-venv, libpython3.12-dev, python3.12-dev, python3.12-venv, python3.10-venv, libpython3.5-minimal, python3.10-minimal, python3.10-dev, python3.12, python3.7, libpython3.5-testsuite, libpython3.7-testsuite, libpython3.7, idle-python3.7, libpython3.9, python3.11-nopie, idle-python3.9, python3.9-minimal, libpython3.9-stdlib, python3.7-minimal, libpython3.6-testsuite, python3.6-venv, libpython3.9-testsuite, libpython3.10, libpython3.11, python3.7-dev, libpython3.11-minimal, python3.5-doc, python3.6-minimal, libpython3.10-minimal, python3.10-doc, idle-python3.11, idle-python3.6, libpython3.8-testsuite, libpython3.5-stdlib, libpython3.8-dev, python3.5, libpython3.5-dev, python3.6-dev, python3.10-full, libpython3.6-dev, libpython3.6, python3.12-doc, python3.5-dev, python3.8-examples, libpython3.9-dev, libpython3.12, idle-python3.5, python3.9-full, python3.12-examples, libpython3.8-minimal, python3.7-venv, python3.10, python3.9-examples, libpython3.6-stdlib, python3.7-doc, libpython3.12-testsuite, python3.9-venv, python3.9, python3.11-dev, libpython3.12-stdlib, python3.8, python3.9-dev, python3.12-nopie, python3.6, python3.11-examples, libpython3.10-dev, libpython3.8, python3.11-doc, libpython3.11-testsuite, python3.11-full, python3.9-doc, python3.8-full, python3.10-nopie, libpython3.10-stdlib, python3.12-minimal, libpython3.9-minimal, libpython3.5, python3.10-examples, libpython3.7-dev