USN-4333-1: Python vulnerabilities
python2.7, python3.4, python3.5, python3.6, python3.7 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
Several security issues were fixed in Python.
Software Description
- python3.7 – An interactive high-level object-oriented language
- python2.7 – An interactive high-level object-oriented language
- python3.6 – An interactive high-level object-oriented language
- python3.5 – An interactive high-level object-oriented language
- python3.4 – An interactive high-level object-oriented language
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 19.10
- python3.7 – 3.7.5-2~19.10ubuntu1
- python3.7-minimal – 3.7.5-2~19.10ubuntu1
- Ubuntu 18.04 LTS
- python2.7 – 2.7.17-1~18.04ubuntu1
- python2.7-minimal – 2.7.17-1~18.04ubuntu1
- python3.6 – 3.6.9-1~18.04ubuntu1
- python3.6-minimal – 3.6.9-1~18.04ubuntu1
- Ubuntu 16.04 LTS
- python2.7 – 2.7.12-1ubuntu0~16.04.11
- python2.7-minimal – 2.7.12-1ubuntu0~16.04.11
- python3.5 – 3.5.2-2ubuntu0~16.04.10
- python3.5-minimal – 3.5.2-2ubuntu0~16.04.10
- Ubuntu 14.04 ESM
- python2.7 – 2.7.6-8ubuntu0.6+esm5
- python2.7-minimal – 2.7.6-8ubuntu0.6+esm5
- python3.4 – 3.4.3-1ubuntu1~14.04.7+esm6
- python3.4-minimal – 3.4.3-1ubuntu1~14.04.7+esm6
- Ubuntu 12.04 ESM
- python2.7 – 2.7.3-0ubuntu3.17
- python2.7-minimal – 2.7.3-0ubuntu3.17
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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