psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "python3-psutil": "3.4.2-1ubuntu0.1", "python-psutil": "3.4.2-1ubuntu0.1", "python-psutil-dbg": "3.4.2-1ubuntu0.1", "python3-psutil-dbg": "3.4.2-1ubuntu0.1", "python-psutil-doc": "3.4.2-1ubuntu0.1" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "python3-psutil": "5.4.2-1ubuntu0.1", "python-psutil": "5.4.2-1ubuntu0.1", "python-psutil-dbg": "5.4.2-1ubuntu0.1", "python3-psutil-dbg": "5.4.2-1ubuntu0.1", "python-psutil-doc": "5.4.2-1ubuntu0.1" } ] }