UBUNTU-CVE-2021-21334

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Source
https://ubuntu.com/security/CVE-2021-21334
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21334.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-21334
Related
Published
2021-03-05T00:00:00Z
Modified
2024-11-20T12:27:06Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

In containerd (an industry-standard container runtime) before versions 1.3.10 and 1.4.4, containers launched through containerd's CRI implementation (through Kubernetes, crictl, or any other pod/container client that uses the containerd CRI service) that share the same image may receive incorrect environment variables, including values that are defined for other containers. If the affected containers have different security contexts, this may allow sensitive information to be unintentionally shared. If you are not using containerd's CRI implementation (through one of the mechanisms described above), you are not vulnerable to this issue. If you are not launching multiple containers or Kubernetes pods from the same image which have different environment variables, you are not vulnerable to this issue. If you are not launching multiple containers or Kubernetes pods from the same image in rapid succession, you have reduced likelihood of being vulnerable to this issue This vulnerability has been fixed in containerd 1.3.10 and containerd 1.4.4. Users should update to these versions.

References

Affected packages

Ubuntu:Pro:16.04:LTS / containerd

Package

Name
containerd
Purl
pkg:deb/ubuntu/containerd?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.2.1-0ubuntu4~16.04
0.2.3-0ubuntu1~16.04
0.2.5-0ubuntu1~16.04.1

1.*

1.2.6-0ubuntu1~16.04.2
1.2.6-0ubuntu1~16.04.3
1.2.6-0ubuntu1~16.04.4
1.2.6-0ubuntu1~16.04.5
1.2.6-0ubuntu1~16.04.6
1.2.6-0ubuntu1~16.04.6+esm1
1.2.6-0ubuntu1~16.04.6+esm2
1.2.6-0ubuntu1~16.04.6+esm4

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / containerd

Package

Name
containerd
Purl
pkg:deb/ubuntu/containerd?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.2-0ubuntu1~18.04.2

Affected versions

0.*

0.2.5-0ubuntu2

1.*

1.2.6-0ubuntu1~18.04.1
1.2.6-0ubuntu1~18.04.2
1.3.3-0ubuntu1~18.04.1
1.3.3-0ubuntu1~18.04.2
1.3.3-0ubuntu1~18.04.3
1.3.3-0ubuntu1~18.04.4
1.4.4-0ubuntu1~18.04.2
1.5.2-0ubuntu1~18.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.5.2-0ubuntu1~18.04.2",
            "binary_name": "containerd"
        },
        {
            "binary_version": "1.5.2-0ubuntu1~18.04.2",
            "binary_name": "containerd-dbgsym"
        },
        {
            "binary_version": "1.5.2-0ubuntu1~18.04.2",
            "binary_name": "golang-github-containerd-containerd-dev"
        },
        {
            "binary_version": "1.5.2-0ubuntu1~18.04.2",
            "binary_name": "golang-github-docker-containerd-dev"
        }
    ]
}

Ubuntu:20.04:LTS / containerd

Package

Name
containerd
Purl
pkg:deb/ubuntu/containerd?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.3-0ubuntu2.3

Affected versions

1.*

1.2.10-0ubuntu1
1.3.2-0ubuntu1
1.3.3-0ubuntu1
1.3.3-0ubuntu2
1.3.3-0ubuntu2.1
1.3.3-0ubuntu2.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.3.3-0ubuntu2.3",
            "binary_name": "containerd"
        },
        {
            "binary_version": "1.3.3-0ubuntu2.3",
            "binary_name": "containerd-dbgsym"
        },
        {
            "binary_version": "1.3.3-0ubuntu2.3",
            "binary_name": "golang-github-docker-containerd-dev"
        }
    ]
}