[USN-7280-3] Python 2.7 regression

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Ubuntu Security Notice USN-7280-3
September 29, 2025

python2.7 regression
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

USN-7280-2 introduced a regression in Python 2.7

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

Details:

USN-7280-2 fixed vulnerabilities in Python. It was discovered that the
fixes for CVE-2025-0938 and CVE-2024-11168 were incorrectly applied on
Ubuntu 14.04 LTS as a result. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Python incorrectly handled parsing domain names that
included square brackets. A remote attacker could possibly use this issue
to perform a Server-Side Request Forgery (SSRF) attack.

Update instructions:

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

Ubuntu 14.04 LTS
libpython2.7 2.7.6-8ubuntu0.6+esm28
Available with Ubuntu Pro
python2.7 2.7.6-8ubuntu0.6+esm28
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7280-3
https://ubuntu.com/security/notices/USN-7280-2
https://ubuntu.com/security/notices/USN-7280-1
CVE-2024-11168, CVE-2025-0938, https://launchpad.net/bugs/2125702