USN-5821-1 fixed a vulnerability in wheel and pip. Unfortunately, it was missing a commit to fix it properly in pip.
We apologize for the inconvenience.
Original advisory details:
Sebastian Chnelik discovered that wheel incorrectly handled certain file names when validated against a regex expression. An attacker could possibly use this issue to cause a denial of service.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "1.5.4-1ubuntu4+esm3", "binary_name": "python-pip" }, { "binary_version": "1.5.4-1ubuntu4+esm3", "binary_name": "python-pip-whl" }, { "binary_version": "1.5.4-1ubuntu4+esm3", "binary_name": "python3-pip" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "binary_version": "8.1.1-2ubuntu0.6+esm4", "binary_name": "python-pip" }, { "binary_version": "8.1.1-2ubuntu0.6+esm4", "binary_name": "python-pip-whl" }, { "binary_version": "8.1.1-2ubuntu0.6+esm4", "binary_name": "python3-pip" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "9.0.1-2.3~ubuntu1.18.04.7", "binary_name": "python-pip" }, { "binary_version": "9.0.1-2.3~ubuntu1.18.04.7", "binary_name": "python-pip-whl" }, { "binary_version": "9.0.1-2.3~ubuntu1.18.04.7", "binary_name": "python3-pip" } ] }