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Ubuntu 24.04: Python Critical DoS Risk USN-7886-1 CVE-2025-6075

ubuntu
Calendar Grey November 24, 2025
Dist Ubuntu Esm H88
Several security issues in Python were fixed across multiple Ubuntu releases, addressing critical risk factors.
Several security issues were fixed in Python.

Summary

Several security issues were fixed in Python.

Software Description:

- 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

- python3.5: An interactive high-level object-oriented language

- python3.4: An interactive high-level object-oriented language

Details:

It was discovered that Python inefficiently handled expanding system

environment variables. An attacker could possibly use this issue to cause

Python to consume excessive resources, leading to a denial of service.

(CVE-2025-6075)

Caleb Brown discovered that Python incorrectly handled the ZIP64 End of

Central Directory (EOCD) Locator r...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu python resource exhaustion

Update Instructions

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

Ubuntu 24.04 LTS
  libpython3.12t64                3.12.3-1ubuntu0.9
  python3.12                      3.12.3-1ubuntu0.9

Ubuntu 22.04 LTS
  idle-python3.11                 3.11.0~rc1-1~22.04.1~esm6
                                  Available with Ubuntu Pro
  libpython3.10                   3.10.12-1~22.04.12
  python3.10                      3.10.12-1~22.04.12
  python3.11                      3.11.0~rc1-1~22.04.1~esm6
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  libpython3.8                    3.8.10-0ubuntu1~20.04.18+esm3
                                  Available with Ubuntu Pro
  libpython3.9                    3.9.5-3ubuntu0~20.04.1+esm7
                                  Available with Ubuntu Pro
  python3.8                       3.8.10-0ubuntu1~20.04.18+esm3
                                  Available with Ubuntu Pro
  python3.9                       3.9.5-3ubuntu0~20.04.1+esm7
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libpython3.6                    3.6.9-1~18.04ubuntu1.13+esm7
                                  Available with Ubuntu Pro
  libpython3.7                    3.7.5-2ubuntu1~18.04.2+esm8
                                  Available with Ubuntu Pro
  libpython3.8                    3.8.0-3ubuntu1~18.04.2+esm7
                                  Available with Ubuntu Pro
  python3.6                       3.6.9-1~18.04ubuntu1.13+esm7
                                  Available with Ubuntu Pro
  python3.7                       3.7.5-2ubuntu1~18.04.2+esm8
                                  Available with Ubuntu Pro
  python3.8                       3.8.0-3ubuntu1~18.04.2+esm7
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  libpython3.5                    3.5.2-2ubuntu0~16.04.13+esm20
                                  Available with Ubuntu Pro
  python3.5                       3.5.2-2ubuntu0~16.04.13+esm20
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  libpython3.4                    3.4.3-1ubuntu1~14.04.7+esm17
                                  Available with Ubuntu Pro
  libpython3.5                    3.5.2-2ubuntu0~16.04.4~14.04.1+esm8
                                  Available with Ubuntu Pro
  python3.4                       3.4.3-1ubuntu1~14.04.7+esm17
                                  Available with Ubuntu Pro
  python3.5                       3.5.2-2ubuntu0~16.04.4~14.04.1+esm8
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7886-1

CVE-2025-6075, CVE-2025-8291

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7886-1

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu python resource exhaustion

Package Information

https://launchpad.net/ubuntu/+source/python3.12/3.12.3-1ubuntu0.9

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