UBUNTU-CVE-2021-28235

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Source

https://ubuntu.com/security/CVE-2021-28235

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-28235.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-28235

Upstream

CVE-2021-28235

Downstream

USN-6189-1

Related

USN-6189-1

Published

2023-04-04T15:15:00Z

Modified

2025-10-24T04:50:13Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

References

Affected packages

Ubuntu:16.04:LTS

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@2.2.5+dfsg-1ubuntu1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.0+dfsg-2

2.2.1+dfsg-1

2.2.2+dfsg-1

2.2.2+dfsg-2

2.2.3+dfsg-1

2.2.5+dfsg-1

2.2.5+dfsg-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2.2.5+dfsg-1ubuntu1",
            "binary_name": "etcd"
        },
        {
            "binary_version": "2.2.5+dfsg-1ubuntu1",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:25.04

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.5.16-4?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.5.15-7

3.5.16-3

3.5.16-4

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.5.16-4",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.5.16-4",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.5.16-4",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:25.10

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.5.16-4?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.5.16-4

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.5.16-4",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.5.16-4",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.5.16-4",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.2.17+dfsg-1ubuntu0.1+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.2.17+dfsg-1ubuntu0.1+esm2

Affected versions

3.*

3.1.0-1

3.2.9+dfsg-2

3.2.9+dfsg-3

3.2.17+dfsg-1

3.2.17+dfsg-1ubuntu0.1~esm1

3.2.17+dfsg-1ubuntu0.1

3.2.17+dfsg-1ubuntu0.1+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
            "binary_name": "etcd"
        },
        {
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.2.17+dfsg-1ubuntu0.1+esm2",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.2.26+dfsg-6ubuntu0.2+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.2.26+dfsg-6ubuntu0.2+esm1

Affected versions

3.*

3.2.26+dfsg-3

3.2.26+dfsg-4

3.2.26+dfsg-6

3.2.26+dfsg-6ubuntu0.1

3.2.26+dfsg-6ubuntu0.2

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
            "binary_name": "etcd"
        },
        {
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.2.26+dfsg-6ubuntu0.2+esm1",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:Pro:22.04:LTS

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.3.25+dfsg-7ubuntu0.22.04.1+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.3.25+dfsg-7ubuntu0.22.04.1+esm1

Affected versions

3.*

3.3.25+dfsg-6

3.3.25+dfsg-7

3.3.25+dfsg-7ubuntu0.22.04.1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.1+esm1",
            "binary_name": "etcd"
        },
        {
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.1+esm1",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.1+esm1",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.3.25+dfsg-7ubuntu0.22.04.1+esm1",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}

Ubuntu:Pro:24.04:LTS

etcd

Package

Name: etcd
Purl: pkg:deb/ubuntu/etcd@3.4.30-1ubuntu0.24.04.3+esm1?arch=source&distro=esm-apps/noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.4.23-4ubuntu2

3.4.30-1

3.4.30-1build1

3.4.30-1ubuntu0.24.04.1

3.4.30-1ubuntu0.24.04.2

3.4.30-1ubuntu0.24.04.2+esm1

3.4.30-1ubuntu0.24.04.3

3.4.30-1ubuntu0.24.04.3+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm1",
            "binary_name": "etcd-client"
        },
        {
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm1",
            "binary_name": "etcd-server"
        },
        {
            "binary_version": "3.4.30-1ubuntu0.24.04.3+esm1",
            "binary_name": "golang-etcd-server-dev"
        }
    ]
}