CVE-2021-32760

Name
CVE-2021-32760
Description
containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.
NVD Severity
unknown
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
CONFIRM https://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3w
MISC https://github.com/containerd/containerd/releases/tag/v1.4.8
MISC https://github.com/containerd/containerd/releases/tag/v1.5.4
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/
security-advisories@github.com https://security.gentoo.org/glsa/202401-31

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* containerd >= None < 1.4.8
cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* containerd >= 1.5.0 < 1.5.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status