CVE-2021-32760
Vulnerability from cvelistv5
Published
2021-07-19 00:00
Modified
2024-11-19 14:27
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Summary
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.
References
security-advisories@github.comhttps://github.com/containerd/containerd/releases/tag/v1.4.8Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/containerd/containerd/releases/tag/v1.5.4Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3wThird Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/
security-advisories@github.comhttps://security.gentoo.org/glsa/202401-31
af854a3a-2127-422b-91ae-364da2661108https://github.com/containerd/containerd/releases/tag/v1.4.8Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/containerd/containerd/releases/tag/v1.5.4Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3wThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202401-31
Impacted products
Vendor Product Version
Show details on NVD website

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