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Ubuntu 25.04: USN-7570-1 critical: Python denial of service

ubuntu
Calendar Grey June 16, 2025
Dist Ubuntu Esm H88
Ubuntu has issued important patches for various Python versions to address vulnerabilities that could lead to app crashes and expose sensitive data. Update now to protect your system!
Python could be made to crash or expose sensitive information.

Summary

Python could be made to crash or expose sensitive information.

Software Description:

- python3.13: An interactive high-level object-oriented language

- python3.12: An interactive high-level object-oriented language

- python3.10: An interactive high-level object-oriented language

- python3.11: An interactive high-level object-oriented language

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

- python3.9: An interactive high-level object-oriented language

- python3.6: An interactive high-level object-oriented language

- python3.7: An interactive high-level object-oriented language

Details:

It was discovered that Python incorrectly handled certain unicode

characters during decoding. An attacker could possibly use this issue to

cause a denial of service. (CVE-2025-4516)

It was discovered that Python incorrectly handled unicode encoding of email

headers with list separators in folded lines. An attacker could possibly

use this issue to expose sensitive information. (CV...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu information exposure python

Update Instructions

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

Ubuntu 25.04
  libpython3.13                   3.13.3-1ubuntu0.1
  libpython3.13-minimal           3.13.3-1ubuntu0.1
  python3.13                      3.13.3-1ubuntu0.1
  python3.13-minimal              3.13.3-1ubuntu0.1

Ubuntu 24.10
  libpython3.12-minimal           3.12.7-1ubuntu2.1
  libpython3.12t64                3.12.7-1ubuntu2.1
  python3.12                      3.12.7-1ubuntu2.1
  python3.12-minimal              3.12.7-1ubuntu2.1

Ubuntu 24.04 LTS
  libpython3.12-minimal           3.12.3-1ubuntu0.6
  libpython3.12t64                3.12.3-1ubuntu0.6
  python3.12                      3.12.3-1ubuntu0.6
  python3.12-minimal              3.12.3-1ubuntu0.6

Ubuntu 22.04 LTS
  libpython3.10                   3.10.12-1~22.04.10
  libpython3.10-minimal           3.10.12-1~22.04.10
  libpython3.11                   3.11.0~rc1-1~22.04.1~esm4
                                  Available with Ubuntu Pro
  libpython3.11-minimal           3.11.0~rc1-1~22.04.1~esm4
                                  Available with Ubuntu Pro
  python3.10                      3.10.12-1~22.04.10
  python3.10-minimal              3.10.12-1~22.04.10
  python3.11                      3.11.0~rc1-1~22.04.1~esm4
                                  Available with Ubuntu Pro
  python3.11-minimal              3.11.0~rc1-1~22.04.1~esm4
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  libpython3.8                    3.8.10-0ubuntu1~20.04.18+esm1
                                  Available with Ubuntu Pro
  libpython3.8-minimal            3.8.10-0ubuntu1~20.04.18+esm1
                                  Available with Ubuntu Pro
  libpython3.9                    3.9.5-3ubuntu0~20.04.1+esm5
                                  Available with Ubuntu Pro
  libpython3.9-minimal            3.9.5-3ubuntu0~20.04.1+esm5
                                  Available with Ubuntu Pro
  python3.8                       3.8.10-0ubuntu1~20.04.18+esm1
                                  Available with Ubuntu Pro
  python3.8-minimal               3.8.10-0ubuntu1~20.04.18+esm1
                                  Available with Ubuntu Pro
  python3.9                       3.9.5-3ubuntu0~20.04.1+esm5
                                  Available with Ubuntu Pro
  python3.9-minimal               3.9.5-3ubuntu0~20.04.1+esm5
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libpython3.6                    3.6.9-1~18.04ubuntu1.13+esm5
                                  Available with Ubuntu Pro
  libpython3.6-minimal            3.6.9-1~18.04ubuntu1.13+esm5
                                  Available with Ubuntu Pro
  libpython3.7                    3.7.5-2ubuntu1~18.04.2+esm6
                                  Available with Ubuntu Pro
  libpython3.7-minimal            3.7.5-2ubuntu1~18.04.2+esm6
                                  Available with Ubuntu Pro
  libpython3.8                    3.8.0-3ubuntu1~18.04.2+esm5
                                  Available with Ubuntu Pro
  libpython3.8-minimal            3.8.0-3ubuntu1~18.04.2+esm5
                                  Available with Ubuntu Pro
  python3.6                       3.6.9-1~18.04ubuntu1.13+esm5
                                  Available with Ubuntu Pro
  python3.6-minimal               3.6.9-1~18.04ubuntu1.13+esm5
                                  Available with Ubuntu Pro
  python3.7                       3.7.5-2ubuntu1~18.04.2+esm6
                                  Available with Ubuntu Pro
  python3.7-minimal               3.7.5-2ubuntu1~18.04.2+esm6
                                  Available with Ubuntu Pro
  python3.8                       3.8.0-3ubuntu1~18.04.2+esm5
                                  Available with Ubuntu Pro
  python3.8-minimal               3.8.0-3ubuntu1~18.04.2+esm5
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7570-1

CVE-2025-1795, CVE-2025-4516

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7570-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu information exposure python

Package Information

https://launchpad.net/ubuntu/+source/python3.13/3.13.3-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python3.12/3.12.7-1ubuntu2.1
https://launchpad.net/ubuntu/+source/python3.12/3.12.3-1ubuntu0.6

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