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requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.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

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