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See doc/triage.md for instructions on how to triage this report.
modules:
- module: github.com/containerd/containerd
versions:
- introduced: 1.5.0
fixed: 1.5.7
packages:
- package: github.com/containerd/containerd
- module: github.com/containerd/containerd
versions:
- fixed: 1.4.11
packages:
- package: github.com/containerd/containerd
description: "### Impact\nA 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.\n\n### Patches\nThis 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.\n\n### Workarounds\nLimit access to
the host to trusted users. Update directory permission on container bundles directories.
\n\n### For more information\nIf you have any questions or comments about this
advisory: \n* Open an issue in [github.com/containerd/containerd](https://github.com/containerd/containerd/issues/new/choose)\n*
Email us at [security@containerd.io](mailto:security@containerd.io)\n"
cves:
- CVE-2021-41103
ghsas:
- GHSA-c2h3-6mxw-7mvq
The text was updated successfully, but these errors were encountered:
In GitHub Security Advisory GHSA-c2h3-6mxw-7mvq, there is a vulnerability in the following Go packages or modules:
Cross references:
See doc/triage.md for instructions on how to triage this report.
The text was updated successfully, but these errors were encountered: