GHSA-c2h3-6mxw-7mvq
Suggest an improvement- Source
- https://github.com/advisories/GHSA-c2h3-6mxw-7mvq
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/10/GHSA-c2h3-6mxw-7mvq/GHSA-c2h3-6mxw-7mvq.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-c2h3-6mxw-7mvq
- Aliases
- Related
- Published
- 2021-10-04T20:14:47Z
- Modified
- 2024-08-21T16:28:57.698155Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
- Summary
- Insufficiently restricted permissions on plugin directories
- Details
-
Impact
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.
Patches
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.
Workarounds
Limit access to the host to trusted users. Update directory permission on container bundles directories.
For more information
If you have any questions or comments about this advisory: * Open an issue in github.com/containerd/containerd * Email us at security@containerd.io
- Database specific
{ "nvd_published_at": "2021-10-04T17:15:00Z", "cwe_ids": [ "CWE-22" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2021-10-04T17:05:03Z" }- References
-
- https://github.com/containerd/containerd/security/advisories/GHSA-c2h3-6mxw-7mvq
- https://nvd.nist.gov/vuln/detail/CVE-2021-41103
- https://github.com/containerd/containerd/commit/5b46e404f6b9f661a205e28d59c982d3634148f8
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/containerd/containerd
- https://github.com/containerd/containerd/releases/tag/v1.4.11
- https://github.com/containerd/containerd/releases/tag/v1.5.7
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB
- https://security.gentoo.org/glsa/202401-31
- https://www.debian.org/security/2021/dsa-5002
Affected packages
Go / github.com/containerd/containerd
Package
- Name
- github.com/containerd/containerd
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/containerd/containerd
Go / github.com/containerd/containerd
Package
- Name
- github.com/containerd/containerd
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/containerd/containerd