Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 438
Alerts This Week
Warning Icon 1 438

Ubuntu 18.04 LTS USN-5342-1 High Risk: Python Code Execution Threats

ubuntu
Calendar Grey March 28, 2022
Dist Ubuntu Esm H88
Uncover essential patches for Python on Ubuntu, addressing risks of confidential data leakage and possible execution vulnerabilities.
Several security issues were fixed in Python.

Summary

Several security issues were fixed in Python.

Software Description:

- python3.8: 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:

David Schwörer discovered that Python incorrectly handled certain inputs.

An attacker could possibly use this issue to expose sensitive information.

This issue only affected Ubuntu 18.04 LTS. (CVE-2021-3426)

It was discovered that Python incorrectly handled certain FTP requests.

An attacker could possibly use this issue to expose sensitive information.

This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 LTS.

(CVE-2021-4189)

It was discovered that Python incorrectly handled certain inputs.

An attacker could possibly use this issue to execut...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory high severity code execution Ubuntu information exposure exploits Python issues

Update Instructions

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

Ubuntu 20.04 LTS:
  python3.8                       3.8.10-0ubuntu1~20.04.4
  python3.8-minimal               3.8.10-0ubuntu1~20.04.4

Ubuntu 18.04 LTS:
  python2.7                       2.7.17-1~18.04ubuntu1.7
  python2.7-minimal               2.7.17-1~18.04ubuntu1.7
  python3.6                       3.6.9-1~18.04ubuntu1.7
  python3.6-minimal               3.6.9-1~18.04ubuntu1.7

Ubuntu 16.04 ESM:
  python2.7                       2.7.12-1ubuntu0~16.04.18+esm1
  python2.7-minimal               2.7.12-1ubuntu0~16.04.18+esm1
  python3.5                       3.5.2-2ubuntu0~16.04.13+esm2
  python3.5-minimal               3.5.2-2ubuntu0~16.04.13+esm2

Ubuntu 14.04 ESM:
  python3.4                       3.4.3-1ubuntu1~14.04.7+esm12
  python3.4-minimal               3.4.3-1ubuntu1~14.04.7+esm12

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

References

https://ubuntu.com/security/notices/USN-5342-1

CVE-2021-3426, CVE-2021-4189, CVE-2022-0391

Severity
important
Lowest
Low
Medium
High
Critical

March 28, 2022

Topics%20covered

Topics Covered

security advisory high severity code execution Ubuntu information exposure exploits Python issues

Package Information

https://launchpad.net/ubuntu/+source/python3.8/3.8.10-0ubuntu1~20.04.4
https://launchpad.net/ubuntu/+source/python2.7/2.7.17-1~18.04ubuntu1.7
https://launchpad.net/ubuntu/+source/python3.6/3.6.9-1~18.04ubuntu1.7

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.