The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting a polkit operation is checked by polkitd via /proc/<pid>/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
CPE | Name | Operator | Version |
---|---|---|---|
backintime | eq | 0.8.16 | |
backintime | eq | 1.0.30 | |
backintime | eq | 1.1.4 | |
backintime | eq | 1.1.6 | |
backintime | eq | 1.0.12 | |
backintime | eq | 1.1.10 | |
backintime | eq | 1.0.24 | |
backintime | eq | 0.8.8 | |
backintime | eq | 1.0.0 | |
backintime | eq | 0.8.12 |