USN-4581-1: Python vulnerability

Releases

• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• python2.7 - An interactive high-level object-oriented language
• python3.4 - 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

Details

It was discovered that Python incorrectly handled certain character
sequences. A remote attacker could possibly use this issue to perform
CRLF injection.

Update instructions

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

Ubuntu 18.04

• python2.7 - 2.7.17-1~18.04ubuntu1.2
• python2.7-minimal - 2.7.17-1~18.04ubuntu1.2
• python3.6 - 3.6.9-1~18.04ubuntu1.3
• python3.6-minimal - 3.6.9-1~18.04ubuntu1.3

Ubuntu 16.04

• python2.7 - 2.7.12-1ubuntu0~16.04.13
• python2.7-minimal - 2.7.12-1ubuntu0~16.04.13
• python3.5 - 3.5.2-2ubuntu0~16.04.12
• python3.5-minimal - 3.5.2-2ubuntu0~16.04.12

Ubuntu 14.04

• python2.7 - 2.7.6-8ubuntu0.6+esm7
• python2.7-minimal - 2.7.6-8ubuntu0.6+esm7
• python3.4 - 3.4.3-1ubuntu1~14.04.7+esm8
• python3.4-minimal - 3.4.3-1ubuntu1~14.04.7+esm8

Ubuntu 12.04

• python2.7 - 2.7.3-0ubuntu3.19
• python2.7-minimal - 2.7.3-0ubuntu3.19

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

References

• CVE-2020-26116

Related notices

• USN-4754-3
• USN-6891-1