DEBIAN-CVE-2017-7572

Source
https://security-tracker.debian.org/tracker/CVE-2017-7572
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-7572.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2017-7572
Upstream
Published
2017-04-06T18:59:00Z
Modified
2025-09-30T03:54:39Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

References

Affected packages

Debian:11 / backintime

Package

Name
backintime
Purl
pkg:deb/debian/backintime?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.12-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / backintime

Package

Name
backintime
Purl
pkg:deb/debian/backintime?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.12-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / backintime

Package

Name
backintime
Purl
pkg:deb/debian/backintime?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.12-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / backintime

Package

Name
backintime
Purl
pkg:deb/debian/backintime?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.12-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}