cd140f26cc
CVE-2021-43816: "Unprivileged pod using `hostPath` can side-step active LSM when
it is SELinux"
Containers launched through containerd’s CRI implementation on Linux systems
which use the SELinux security module and containerd versions since v1.5.0 can
cause arbitrary files and directories on the host to be relabeled to match the
container process label through the use of specially-configured bind mounts in a
hostPath volume. This relabeling elevates permissions for the container,
granting full read/write access over the affected files and directories.
Kubernetes and crictl can both be configured to use containerd’s CRI
implementation.
https://github.com/advisories/GHSA-mvff-h3cj-wj9c
https://github.com/containerd/containerd/releases/tag/v1.5.9
Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit
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| boot | ||
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| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| README | ||
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches