USN-4333-2: Python vulnerabilities

Releases

• Ubuntu 20.04 LTS

Packages

• python3.8 - Interactive high-level object-oriented language (version 3.8)

Details

USN-4333-1 fixed vulnerabilities in Python. This update provides
the corresponding update for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that Python incorrectly stripped certain characters from
requests. A remote attacker could use this issue to perform CRLF injection.
(CVE-2019-18348)

It was discovered that Python incorrectly handled certain HTTP requests.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2020-8492)

Update instructions

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

Ubuntu 20.04

• python3.8 - 3.8.2-1ubuntu1.1
• python3.8-minimal - 3.8.2-1ubuntu1.1

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

References

• CVE-2019-18348
• CVE-2020-8492

Related notices

• USN-4333-1: libpython3.4-minimal, python3.7-examples, idle-python3.6, python3.4, python3.7-dev, python3.4-minimal, python3.6-venv, python3.7-venv, python3.6-minimal, libpython3.4-testsuite, python2.7-doc, libpython2.7-dev, libpython3.5-stdlib, python3.4-doc, libpython3.7-testsuite, libpython3.5-dev, libpython3.7-minimal, libpython3.5-testsuite, libpython3.6-stdlib, libpython2.7-stdlib, libpython2.7, python3.5-venv, python3.7-doc, libpython2.7-testsuite, libpython3.6-minimal, python3.6, python3.5-minimal, python2.7-examples, libpython3.7, python2.7-minimal, python3.4-examples, python3.7, python3.5-examples, python3.5-dev, libpython3.5-minimal, python3.5, idle-python2.7, libpython3.4-stdlib, python3.5-doc, libpython3.7-stdlib, libpython3.6-testsuite, python2.7, python3.4-dev, python2.7-dev, python3.6-examples, idle-python3.5, python3.6-doc, libpython3.5, idle-python3.4, python3.7-minimal, libpython3.4-dev, libpython3.4, libpython3.6, idle-python3.7, libpython3.6-dev, python3.6-dev, libpython2.7-minimal, python3.4-venv, libpython3.7-dev
• USN-4754-3: libpython3.8-dev, python3.7-examples, idle-python3.8, libpython3.8-testsuite, python3.7-dev, python3.8-minimal, python3.7-venv, python3.8-examples, python2.7-doc, libpython2.7-dev, python3.8-dev, libpython3.8-stdlib, libpython3.7-minimal, libpython2.7-stdlib, libpython2.7, python3.7-doc, libpython2.7-testsuite, libpython3.8-minimal, python2.7-examples, libpython3.7, python2.7-minimal, python3.7, libpython2.7-minimal, idle-python2.7, libpython3.7-stdlib, python2.7, python2.7-dev, python3.8, python3.8-venv, python3.7-minimal, libpython3.8, idle-python3.7, libpython3.7-testsuite, libpython3.7-dev
• USN-5200-1: libpython3.8-dev, python3.7-examples, idle-python3.8, libpython3.8-testsuite, python3.7-dev, python3.8-minimal, python3.7-venv, python3.8-examples, python3.8-dev, libpython3.8-stdlib, libpython3.7-minimal, python3.7-doc, libpython3.8-minimal, libpython3.7, python3.7, libpython3.7-stdlib, python3.8, python3.8-venv, python3.7-minimal, libpython3.8, idle-python3.7, libpython3.7-testsuite, libpython3.7-dev