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CVE-2023-25173

CVE-2023-25173 · containerd supplementary groups are not set up properly

This page contains facts from public vulnerability sources. Check the original advisory before updating.

containerd is an open source container runtime. A bug was found in containerd prior to versions 1.6.18 and 1.5.18 where supplementary groups are not set up properly inside a container. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. Downstream applications that use the containerd client library may be affected as well. This bug has been fixed in containerd v1.6.18 and v.1.5.18. Users should update to these versions and recreate containers to resolve this issue. Users who rely on a downstream application that uses containerd's client library should check that application for a separate advisory and instructions. As a workaround, ensure that the `"USER $USERNAME"` Dockerfile instruction is not used. Instead, set the container entrypoint to a value similar to `ENTRYPOINT ["su", "-", "user"]` to allow `su` to properly set up supplementary groups.

CVSS 5.3 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: system · containers

Affected products and versions

  • containerd

    Versions
    • < 1.5.18: Affected
    • >= 1.6.0, < 1.6.18: Affected

    No fix published

  • containerd Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.6.18~ds1-1

    Update to 1.6.18~ds1-1

  • containerd Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.6.18~ds1-1

    Update to 1.6.18~ds1-1

  • containerd Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.6.18~ds1-1

    Update to 1.6.18~ds1-1

  • containerd Ubuntu:Pro:16.04:LTS

    Versions
    • 0.2.1-0ubuntu4~16.04
    • 0.2.3-0ubuntu1~16.04
    • 0.2.5-0ubuntu1~16.04.1
    • 1.2.6-0ubuntu1~16.04.2
    • 1.2.6-0ubuntu1~16.04.3
    • 1.2.6-0ubuntu1~16.04.4
    • 1.2.6-0ubuntu1~16.04.5
    • 1.2.6-0ubuntu1~16.04.6
    • 1.2.6-0ubuntu1~16.04.6+esm1
    • 1.2.6-0ubuntu1~16.04.6+esm2
    Affected ranges
    • ECOSYSTEM: < 1.2.6-0ubuntu1~16.04.6+esm4

    Update to 1.2.6-0ubuntu1~16.04.6+esm4

  • containerd Ubuntu:Pro:18.04:LTS

    Versions
    • 0.2.5-0ubuntu2
    • 1.2.6-0ubuntu1~18.04.1
    • 1.2.6-0ubuntu1~18.04.2
    • 1.3.3-0ubuntu1~18.04.1
    • 1.3.3-0ubuntu1~18.04.2
    • 1.3.3-0ubuntu1~18.04.3
    • 1.3.3-0ubuntu1~18.04.4
    • 1.4.4-0ubuntu1~18.04.2
    • 1.5.2-0ubuntu1~18.04.1
    • 1.5.2-0ubuntu1~18.04.2
    • 1.5.2-0ubuntu1~18.04.3
    • 1.5.5-0ubuntu3~18.04.1
    • 1.5.5-0ubuntu3~18.04.2
    • 1.5.9-0ubuntu1~18.04.1
    • 1.5.9-0ubuntu1~18.04.2
    • 1.6.12-0ubuntu1~18.04.1
    Affected ranges
    • ECOSYSTEM: < 1.6.12-0ubuntu1~18.04.1+esm1

    Update to 1.6.12-0ubuntu1~18.04.1+esm1

  • containerd Ubuntu:20.04:LTS

    Versions
    • 1.2.10-0ubuntu1
    • 1.3.2-0ubuntu1
    • 1.3.3-0ubuntu1
    • 1.3.3-0ubuntu2
    • 1.3.3-0ubuntu2.1
    • 1.3.3-0ubuntu2.2
    • 1.3.3-0ubuntu2.3
    • 1.4.4-0ubuntu1~20.04.2
    • 1.5.2-0ubuntu1~20.04.1
    • 1.5.2-0ubuntu1~20.04.2
    • 1.5.2-0ubuntu1~20.04.3
    • 1.5.5-0ubuntu3~20.04.1
    • 1.5.5-0ubuntu3~20.04.2
    • 1.5.9-0ubuntu1~20.04.1
    • 1.5.9-0ubuntu1~20.04.4
    • 1.5.9-0ubuntu1~20.04.5
    • 1.5.9-0ubuntu1~20.04.6
    • 1.6.12-0ubuntu1~20.04.1
    Affected ranges
    • ECOSYSTEM: < 1.6.12-0ubuntu1~20.04.3

    Update to 1.6.12-0ubuntu1~20.04.3

  • containerd Ubuntu:22.04:LTS

    Versions
    • 1.5.5-0ubuntu3
    • 1.5.9-0ubuntu1
    • 1.5.9-0ubuntu2
    • 1.5.9-0ubuntu3
    • 1.5.9-0ubuntu3.1
    • 1.6.12-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: < 1.6.12-0ubuntu1~22.04.3

    Update to 1.6.12-0ubuntu1~22.04.3

Original sources

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