CVE catalog

CVE-2017-7572

backintime: CVE-2017-7572

[CVE catalog]

Severity
High · CVSS 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
Source
[NVD] · [CVE record]
EPSS
1.08% · Oct 25, 2026

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/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianbackintimesid1.6.2-1fixed
Debianbackintimeforky1.6.1-1fixed
Debianbackintimetrixie1.5.5-1fixed
Debianbackintimebookworm1.3.3-4fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianbackintimesourcesid1.1.12-2not yet assignedNot reported[859815]
Debianbackintimesourceforky1.1.12-2not yet assignedNot reported[859815]
Debianbackintimesourcetrixie1.1.12-2not yet assignedNot reported[859815]
Debianbackintimesourcebookworm1.1.12-2not yet assignedNot reported[859815]

[Debian bug #859815]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • Source package: [backintime]

    Details (2)
    • 1.3.3-4 · all · bookworm

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · bookworm; dsa · backintime · debian · 12

    • 1.3.3-4 · all · bookworm

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · bookworm; dsa · backintime · debian · 12

  • Source package: [backintime]

    Details (2)
    • 1.3.3-4 · all · bookworm

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · bookworm; dsa · backintime · debian · 12

    • 1.3.3-4 · all · bookworm

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · bookworm; dsa · backintime · debian · 12

[Debian 13 (Trixie)]

  • Source package: [backintime]

    Details (2)
    • 1.5.5-1 · all · trixie

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · 13

    • 1.5.5-1 · all · trixie

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · 13

  • Source package: [backintime]

    Details (2)
    • 1.5.5-1 · all · trixie

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · 13

    • 1.5.5-1 · all · trixie

      Fixed · Fixed: 1.1.12-2

      dsa · backintime · debian · 13

Observed:

References