CVE-2021-32760

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-32760
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32760.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-32760
Aliases
Related
Published
2021-07-19T21:15:07Z
Modified
2024-05-30T03:01:20.902492Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/containerd/containerd

Affected ranges

Type
GIT
Repo
https://github.com/containerd/containerd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

0.*

0.0.2
0.0.3
0.0.4
0.0.5

v0.*

v0.1.0
v0.2.0
v0.2.3

v1.*

v1.0.0
v1.0.0-alpha0
v1.0.0-alpha1
v1.0.0-alpha2
v1.0.0-alpha3
v1.0.0-alpha4
v1.0.0-alpha5
v1.0.0-alpha6
v1.0.0-beta.0
v1.0.0-beta.1
v1.0.0-beta.2
v1.0.0-beta.3
v1.0.0-rc.0
v1.1.0
v1.1.0-rc.0
v1.1.0-rc.1
v1.1.0-rc.2
v1.2.0
v1.2.0-beta.0
v1.2.0-beta.1
v1.2.0-beta.2
v1.2.0-rc.0
v1.2.0-rc.1
v1.2.0-rc.2
v1.3.0
v1.3.0-beta.0
v1.3.0-beta.1
v1.3.0-beta.2
v1.3.0-rc.0
v1.3.0-rc.1
v1.3.0-rc.2
v1.3.0-rc.3
v1.4.0
v1.4.0-beta.0
v1.4.0-beta.1
v1.4.0-beta.2
v1.4.0-rc.0
v1.4.0-rc.1
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7