Ubuntu 4973-1: Python vulnerability | LinuxSecurity.com

Advisories

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Ubuntu Security Notice USN-4973-1
June 01, 2021

python3.8 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10
- Ubuntu 20.04 LTS

Summary:

Python could allow unintended access to network services.

Software Description:
- python3.8: An interactive high-level object-oriented language

Details:

It was discovered that the Python stdlib ipaddress API incorrectly handled
octal strings. A remote attacker could possibly use this issue to perform a
wide variety of attacks, including bypassing certain access restrictions.

Update instructions:

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

Ubuntu 20.10:
  python3.8                       3.8.6-1ubuntu0.3
  python3.8-minimal               3.8.6-1ubuntu0.3

Ubuntu 20.04 LTS:
  python3.8                       3.8.5-1~20.04.3
  python3.8-minimal               3.8.5-1~20.04.3

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

References:
  https://ubuntu.com/security/notices/USN-4973-1
  CVE-2021-29921

Package Information:
  https://launchpad.net/ubuntu/+source/python3.8/3.8.6-1ubuntu0.3
  https://launchpad.net/ubuntu/+source/python3.8/3.8.5-1~20.04.3

Ubuntu 4973-1: Python vulnerability

June 1, 2021

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS Summary: Python could allow unintended access to network services. Software Description: - python3.8: An interactive high-level object-oriented language Details: It was discovered that the Python stdlib ipaddress API incorrectly handled octal strings. A remote attacker could possibly use this issue to perform a wide variety of attacks, including bypassing certain access restrictions.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: python3.8 3.8.6-1ubuntu0.3 python3.8-minimal 3.8.6-1ubuntu0.3 Ubuntu 20.04 LTS: python3.8 3.8.5-1~20.04.3 python3.8-minimal 3.8.5-1~20.04.3 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4973-1

CVE-2021-29921

Severity
Ubuntu Security Notice USN-4973-1

Package Information

https://launchpad.net/ubuntu/+source/python3.8/3.8.6-1ubuntu0.3 https://launchpad.net/ubuntu/+source/python3.8/3.8.5-1~20.04.3

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