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

×
Alerts This Week
Warning Icon 1 502
Alerts This Week
Warning Icon 1 502

Ubuntu 16.04/18.04 USN-4754-4 Critical: Python 2.7 DoS and Code Execution

ubuntu
Calendar Grey March 3, 2021
Dist Ubuntu Esm H88
Explore information regarding the security flaw found in Python 2.7 for Ubuntu and learn the steps to secure your system by applying updates.
Python could be made to execute arbitrary code or denial of service if it received a specially crafted input.

Summary

Python could be made to execute arbitrary code or denial of service if it

received a specially crafted input.

Software Description:

- python2.7: An interactive high-level object-oriented language

Details:

USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a

subsequent update removed the fix for CVE-2021-3177. This update reinstates

the security fix for CVE-2021-3177.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Python incorrectly handled certain inputs.

An attacker could possibly use this issue to execute arbitrary code

or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update arbitrary code execution ubuntu python

Update Instructions

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

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

Ubuntu 16.04 LTS:
  python2.7                       2.7.12-1ubuntu0~16.04.18
  python2.7-minimal               2.7.12-1ubuntu0~16.04.18

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

References

https://ubuntu.com/security/notices/USN-4754-4

CVE-2021-3177

Severity
critical
Lowest
Low
Medium
High
Critical

March 03, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update arbitrary code execution ubuntu python

Package Information

https://launchpad.net/ubuntu/+source/python2.7/2.7.17-1~18.04ubuntu1.6
https://launchpad.net/ubuntu/+source/python2.7/2.7.12-1ubuntu0~16.04.18

Get the latest News and Insights

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