CVE-2017-7572 backintime

Metadata

critical
9.3
backintime
CVE-2017-7572
2017-06-18 07:51
CVE-2017-7572
2017-06-16 19:22
2017-04-28 05:03
2017-04-22 23:03
2017-04-14 05:03
2017-04-08 05:03
2017-04-07 23:03
2017-04-07 11:03

Description

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requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

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Affected package information

Release Package Patched in
buster backintime 1.1.12-2
jessie backintime None
sid backintime 1.1.12-2
stretch backintime 1.1.12-2

Unaffected

Release Package Reason
wheezy backintime