A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: USN-7015-4 introduced a regression in Python 2.7 Software Description: - python2.7: An interactive high-level object-oriented language Details: USN-7015-4 fixed vulnerabilities in Python. It was discovered that the fix for CVE-2023-27043 for python2.7 was incorrectly applied on Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that the Python email module incorrectly parsed email addresses that contain special characters. A remote attacker could possibly use this issue to bypass certain protection mechanisms. (CVE-2023-27043) It was discovered that Python allowed excessive backtracking while parsing certain tarfile headers. A remote attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. (CVE-2024...
Read the Full AdvisoryThe problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS libpython2.7 2.7.17-1~18.04ubuntu1.13+esm13 Available with Ubuntu Pro python2.7 2.7.17-1~18.04ubuntu1.13+esm13 Available with Ubuntu Pro Ubuntu 16.04 LTS libpython2.7 2.7.12-1ubuntu0~16.04.18+esm18 Available with Ubuntu Pro python2.7 2.7.12-1ubuntu0~16.04.18+esm18 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.
https://ubuntu.com/security/notices/USN-7015-7
https://ubuntu.com/security/notices/USN-7015-6
https://ubuntu.com/security/notices/USN-7015-5
https://ubuntu.com/security/notices/USN-7015-4
https://ubuntu.com/security/notices/USN-7015-3
https://ubuntu.com/security/notices/USN-7015-2
https://ubuntu.com/security/notices/USN-7015-1
CVE-2023-27043, https://bugs.launchpad.net/ubuntu/+source/python2.7/+bug/2125702
Get the latest Linux and open source security news straight to your inbox.