Ubuntu Security Notice 4754-3 - USN-4754-1 fixed vulnerabilities in Python. This update provides the corresponding updates for Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. In the case of Python 2.7 for 20.04 ESM, these additional fixes are included: It was discovered that Python allowed remote attackers to cause a denial of service via a ZIP bomb. It was discovered that Python had potentially misleading information about whether sorting occurs. This fix updates the documentation about it. Various other issues were also addressed.
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Ubuntu Security Notice 4754-1 - It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.
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