Upstream information

CVE-2017-7572 at MITRE

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requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 9.3
Vector AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 8.1
Vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
SUSE Bugzilla entry: 1032717 [RESOLVED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.1
  • backintime >= 1.1.20-3.1
  • backintime-lang >= 1.1.20-3.1
  • backintime-qt4 >= 1.1.20-3.1
Patchnames:
openSUSE-2017-525
openSUSE Leap 42.2
  • backintime >= 1.1.20-3.3.1
  • backintime-lang >= 1.1.20-3.3.1
  • backintime-qt4 >= 1.1.20-3.3.1
Patchnames:
openSUSE-2017-525


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise SDK 12 SP3 rpmlint Released