QID 980093

QID 980093: Go (go) Security Update for github.com/containerd/containerd (GHSA-c2h3-6mxw-7mvq)

Security update has been released for github.com/containerd/containerd to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

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.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as High - 7.2 severity.

Solution

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.Workaround:
Limit access to the host to trusted users. Update directory permission on container bundles directories.

Vendor References

GHSA-c2h3-6mxw-7mvq - github.com/advisories/GHSA-c2h3-6mxw-7mvq

CVEs related to QID 980093

CVE-2021-41103 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-c2h3-6mxw-7mvq	github.com/containerd/containerd		github.com/advisories/GHSA-c2h3-6mxw-7mvq

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].