Fixes CVE-2020-15801 & CVE-2019-20907. Changelog: https://docs.python.org/release/3.8.5/whatsnew/changelog.html Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>