python2.7, python3.4 vulnerabilities

10 October 2019

python2.7, python3.4 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.04 ESM
• Ubuntu 12.04 ESM

Summary

Several security issues were fixed in Python.

Software Description

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

Details

USN-4151-1 fixed several vulnerabilities in Python. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Python incorrectly parsed certain email addresses. A remote attacker could possibly use this issue to trick Python applications into accepting email addresses that should be denied. (CVE-2019-16056)

It was discovered that the Python documentation XML-RPC server incorrectly handled certain fields. A remote attacker could use this issue to execute a cross-site scripting (XSS) attack. (CVE-2019-16935)

Update instructions

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

Ubuntu 14.04 ESM

python2.7 - 2.7.6-8ubuntu0.6+esm3

python2.7-minimal - 2.7.6-8ubuntu0.6+esm3

python3.4 - 3.4.3-1ubuntu1~14.04.7+esm4

python3.4-minimal - 3.4.3-1ubuntu1~14.04.7+esm4

Ubuntu 12.04 ESM

python2.7 - 2.7.3-0ubuntu3.15

python2.7-minimal - 2.7.3-0ubuntu3.15

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.

References

• USN-4151-1
• CVE-2019-16056
• CVE-2019-16935