USN-4333-1: Python vulnerabilities

Published Apr 21, 2020
·
Updated

It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348) It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)

Affected Software

33 affected componentsFixes available
Python Software Foundation Python
All of the following
ubuntu/python3.7<3.7.5-2~19.10ubuntu1
3.7.5-2~19.10ubuntu1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/python3.7-minimal<3.7.5-2~19.10ubuntu1
3.7.5-2~19.10ubuntu1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/python2.7<2.7.17-1~18.04ubuntu1
2.7.17-1~18.04ubuntu1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/python2.7-minimal<2.7.17-1~18.04ubuntu1
2.7.17-1~18.04ubuntu1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/python3.6<3.6.9-1~18.04ubuntu1
3.6.9-1~18.04ubuntu1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/python3.6-minimal<3.6.9-1~18.04ubuntu1
3.6.9-1~18.04ubuntu1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/python2.7<2.7.12-1ubuntu0~16.04.11
2.7.12-1ubuntu0~16.04.11
Ubuntu Ubuntu=16.04
All of the following
ubuntu/python2.7-minimal<2.7.12-1ubuntu0~16.04.11
2.7.12-1ubuntu0~16.04.11
Ubuntu Ubuntu=16.04
All of the following
ubuntu/python3.5<3.5.2-2ubuntu0~16.04.10
3.5.2-2ubuntu0~16.04.10
Ubuntu Ubuntu=16.04
All of the following
ubuntu/python3.5-minimal<3.5.2-2ubuntu0~16.04.10
3.5.2-2ubuntu0~16.04.10
Ubuntu Ubuntu=16.04
All of the following
ubuntu/python2.7<2.7.6-8ubuntu0.6+esm5
2.7.6-8ubuntu0.6+esm5
Ubuntu Ubuntu=14.04
All of the following
ubuntu/python2.7-minimal<2.7.6-8ubuntu0.6+esm5
2.7.6-8ubuntu0.6+esm5
Ubuntu Ubuntu=14.04
All of the following
ubuntu/python3.4<3.4.3-1ubuntu1~14.04.7+esm6
3.4.3-1ubuntu1~14.04.7+esm6
Ubuntu Ubuntu=14.04
All of the following
ubuntu/python3.4-minimal<3.4.3-1ubuntu1~14.04.7+esm6
3.4.3-1ubuntu1~14.04.7+esm6
Ubuntu Ubuntu=14.04
All of the following
ubuntu/python2.7<2.7.3-0ubuntu3.17
2.7.3-0ubuntu3.17
Ubuntu Ubuntu=12.04
All of the following
ubuntu/python2.7-minimal<2.7.3-0ubuntu3.17
2.7.3-0ubuntu3.17
Ubuntu Ubuntu=12.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/python3.7 to a version that resolves this vulnerability.

    Fixed in 3.7.5-2~19.10ubuntu1
  2. Upgrade

    Upgrade ubuntu/python3.7-minimal to a version that resolves this vulnerability.

    Fixed in 3.7.5-2~19.10ubuntu1
  3. Upgrade

    Upgrade ubuntu/python2.7 to a version that resolves this vulnerability.

    Fixed in 2.7.17-1~18.04ubuntu1
  4. Upgrade

    Upgrade ubuntu/python2.7-minimal to a version that resolves this vulnerability.

    Fixed in 2.7.17-1~18.04ubuntu1
  5. Upgrade

    Upgrade ubuntu/python3.6 to a version that resolves this vulnerability.

    Fixed in 3.6.9-1~18.04ubuntu1
  6. Upgrade

    Upgrade ubuntu/python3.6-minimal to a version that resolves this vulnerability.

    Fixed in 3.6.9-1~18.04ubuntu1
  7. Upgrade

    Upgrade ubuntu/python2.7 to a version that resolves this vulnerability.

    Fixed in 2.7.12-1ubuntu0~16.04.11
  8. Upgrade

    Upgrade ubuntu/python2.7-minimal to a version that resolves this vulnerability.

    Fixed in 2.7.12-1ubuntu0~16.04.11
  9. Upgrade

    Upgrade ubuntu/python3.5 to a version that resolves this vulnerability.

    Fixed in 3.5.2-2ubuntu0~16.04.10
  10. Upgrade

    Upgrade ubuntu/python3.5-minimal to a version that resolves this vulnerability.

    Fixed in 3.5.2-2ubuntu0~16.04.10
  11. Upgrade

    Upgrade ubuntu/python2.7 to a version that resolves this vulnerability.

    Fixed in 2.7.6-8ubuntu0.6+esm5
  12. Upgrade

    Upgrade ubuntu/python2.7-minimal to a version that resolves this vulnerability.

    Fixed in 2.7.6-8ubuntu0.6+esm5
  13. Upgrade

    Upgrade ubuntu/python3.4 to a version that resolves this vulnerability.

    Fixed in 3.4.3-1ubuntu1~14.04.7+esm6
  14. Upgrade

    Upgrade ubuntu/python3.4-minimal to a version that resolves this vulnerability.

    Fixed in 3.4.3-1ubuntu1~14.04.7+esm6
  15. Upgrade

    Upgrade ubuntu/python2.7 to a version that resolves this vulnerability.

    Fixed in 2.7.3-0ubuntu3.17
  16. Upgrade

    Upgrade ubuntu/python2.7-minimal to a version that resolves this vulnerability.

    Fixed in 2.7.3-0ubuntu3.17

Event History

Apr 21, 2020
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for the Python vulnerabilities?

The vulnerability ID for the Python vulnerabilities is CVE-2019-18348.

2

What is the impact of the Python vulnerabilities?

The Python vulnerabilities could allow a remote attacker to perform CRLF injection and cause a denial of service.

3

Which versions of Python are affected by the vulnerabilities?

The vulnerabilities affect Python versions 2.7, 3.4, 3.5, 3.6, and 3.7.

4

How can I fix the Python vulnerabilities?

To fix the Python vulnerabilities, update your Python packages to the specified remedial versions.

5

Where can I find more information about the Python vulnerabilities?

You can find more information about the Python vulnerabilities in the provided references.

Company

Resources

Contact

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