CVE catalog

CVE-2022-31214

firejail: CVE-2022-31214

[CVE catalog]

Severity
High · CVSS 7.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.39% · Oct 25, 2026

A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.

Vulnerable and fixed packages

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

DistributionPackageReleaseVersionStatus
Debianfirejailsid0.9.80-2fixed
Debianfirejailtrixie0.9.74-1fixed
Debianfirejailbookworm0.9.72-2fixed
Susefirejailpackage hub 15 sp30.9.70-bp153.2.6.1fixed
Opensusefirejailleap 15.30.9.70-bp153.2.6.1fixed
Susefirejailpackage hub 15 sp40.9.70-bp154.2.3.1fixed
Opensusefirejailleap 15.40.9.70-bp154.2.3.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianfirejailsourcesid0.9.68-4not yet assignedNot reported[1012510]
Debianfirejailsourcetrixie0.9.68-4not yet assignedNot reported[1012510]
Debianfirejailsourcebookworm0.9.68-4not yet assignedNot reported[1012510]
Susefirejailrpmpackage hub 15 sp30.9.70-bp153.2.6.1Not reportedOPENSUSE-SU-2022:10015-1Not reported
Opensusefirejailrpmleap 15.30.9.70-bp153.2.6.1Not reportedOPENSUSE-SU-2022:10015-1Not reported
Susefirejailrpmpackage hub 15 sp40.9.70-bp154.2.3.1Not reportedOPENSUSE-SU-2022:10016-1Not reported
Opensusefirejailrpmleap 15.40.9.70-bp154.2.3.1Not reportedOPENSUSE-SU-2022:10016-1Not reported

[Debian bug #1012510]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [firejail]Fixed
    Details (2)
    • 0.9.72-2 · amd64 · bookworm

      Fixed · Fixed: 0.9.68-4

      dsa · firejail · debian · bookworm

    • 0.9.72-2 · arm64 · bookworm

      Fixed · Fixed: 0.9.68-4

      dsa · firejail · debian · bookworm

  • Source package: [firejail]

    Details (2)
    • 0.9.72-2 · all · bookworm

      Fixed · Fixed: 0.9.68-4

      dsa · firejail · debian · bookworm

    • 0.9.72-2 · all · bookworm

      Fixed · Fixed: 0.9.68-4

      dsa · firejail · debian · bookworm

Observed:

References