CVE-2021-41103
Fixed in a distro release EPSS <1%CVSS 5.9
containerd is an open source container runtime with an emphasis on simplicity, robustness and portability. A bug was found in containerd where container root directories and some plugins had insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This vulnerability has been fixed in containerd 1.4.11 and containerd 1.5.7. Users should update to these version when they are released and may restart containers or update directory permissions to mitigate the vulnerability. Users unable to update should limit access to the host to trusted users. Update directory permission on container bundles directories.
Products: containerd
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/containerd/containerd | 1.4.11 |
| Go | github.com/containerd/containerd | 1.5.7 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | ctop | 0.7.7-r13 |
| Debian 11 | containerd | 1.4.5~ds1-2+deb11u1 |
| Debian 12 | containerd | 1.5.7~ds1-1 |
| Debian 13 | containerd | 1.5.7~ds1-1 |
| Debian 14 | containerd | 1.5.7~ds1-1 |
| SUSE Enterprise Storage 6 | containerd | 1.4.11-56.1 |
| SUSE Enterprise Storage 6 | docker | 20.10.9_ce-156.1 |
| SUSE Enterprise Storage 6 | runc | 1.0.2-23.1 |
| SUSE Enterprise Storage 7 | runc | 1.0.2-23.1 |
| SUSE Enterprise Storage 7.1 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Micro 5.0 | containerd | 1.4.12-60.1 |
| SUSE Linux Enterprise Micro 5.0 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Micro 5.0 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Micro 5.0 | docker | 20.10.12_ce-159.1 |
| SUSE Linux Enterprise Micro 5.0 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Micro 5.1 | containerd | 1.4.12-60.1 |
| SUSE Linux Enterprise Micro 5.1 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Micro 5.1 | docker | 20.10.12_ce-159.1 |
| SUSE Linux Enterprise Micro 5.1 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Micro 5.1 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Module for Containers 12 | containerd | 1.4.11-16.45.1 |
| SUSE Linux Enterprise Module for Containers 12 | containerd | 1.4.12-16.49.1 |
| SUSE Linux Enterprise Module for Containers 12 | docker | 20.10.9_ce-98.72.1 |
| SUSE Linux Enterprise Module for Containers 12 | docker | 20.10.12_ce-98.75.1 |
| SUSE Linux Enterprise Module for Containers 12 | runc | 1.0.2-16.14.1 |
| SUSE Linux Enterprise Module for Containers 15 SP2 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Module for Containers 15 SP2 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Module for Containers 15 SP2 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Module for Containers 15 SP3 | containerd | 1.4.12-60.1 |
| SUSE Linux Enterprise Module for Containers 15 SP3 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Module for Containers 15 SP3 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Module for Containers 15 SP3 | docker | 20.10.12_ce-159.1 |
| SUSE Linux Enterprise Module for Containers 15 SP3 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Module for Containers 15 SP6 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Module for Containers 15 SP7 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | docker-stable | 24.0.9_ce-1.20.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Server 15 SP3-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server 15-LTSS | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Server 15-LTSS | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Server 15-LTSS | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | docker-stable | 24.0.9_ce-1.20.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | containerd | 1.4.11-56.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | docker | 20.10.9_ce-156.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | runc | 1.0.2-23.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| Ubuntu 18.04 LTS | containerd | 1.5.2-0ubuntu1~18.04.3 |
| Ubuntu 20.04 LTS | containerd | 1.5.2-0ubuntu1~20.04.3 |
| Ubuntu 22.04 LTS | containerd | 1.5.5-0ubuntu3 |
| Ubuntu Pro 16.04 LTS | containerd | 1.2.6-0ubuntu1~16.04.6+esm2 |
| Wolfi | ctop | 0.7.7-r13 |
| openSUSE Leap 15.2 | containerd | 1.4.11-lp152.2.12.1 |
| openSUSE Leap 15.2 | docker | 20.10.9_ce-lp152.2.18.1 |
| openSUSE Leap 15.2 | runc | 1.0.2-lp152.2.9.1 |
| openSUSE Leap 15.3 | containerd | 1.4.12-60.1 |
| openSUSE Leap 15.3 | containerd | 1.4.11-56.1 |
| openSUSE Leap 15.3 | docker | 20.10.9_ce-156.1 |
| openSUSE Leap 15.3 | docker | 20.10.12_ce-159.1 |
| openSUSE Leap 15.3 | docker-kubic | 20.10.9_ce-156.1 |
| openSUSE Leap 15.3 | docker-kubic | 20.10.12_ce-159.1 |
| openSUSE Leap 15.3 | runc | 1.0.2-23.1 |
| openSUSE Leap 15.6 | docker-stable | 24.0.9_ce-150000.1.25.1 |
| openSUSE Tumbleweed | containerd | 1.4.11-1.1 |