UBUNTU-CVE-2021-20236

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Source
https://ubuntu.com/security/CVE-2021-20236
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-20236.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-20236
Related
Published
2021-05-28T11:15:00Z
Modified
2025-01-13T10:22:28Z
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
Summary
[none]
Details

A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

Affected packages

Ubuntu:Pro:14.04:LTS / zeromq3

Package

Name
zeromq3
Purl
pkg:deb/ubuntu/zeromq3@4.0.4+dfsg-2ubuntu0.1+esm3?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

3.*

3.2.3+dfsg-2
3.2.4+dfsg-1
3.2.4+dfsg-2
3.2.4+dfsg-3
3.2.4+dfsg-4

4.*

4.0.3+dfsg-1
4.0.4+dfsg-2
4.0.4+dfsg-2ubuntu0.1
4.0.4+dfsg-2ubuntu0.1+esm1
4.0.4+dfsg-2ubuntu0.1+esm2
4.0.4+dfsg-2ubuntu0.1+esm3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / zeromq3

Package

Name
zeromq3
Purl
pkg:deb/ubuntu/zeromq3@4.1.4-7ubuntu0.1+esm2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

4.*

4.0.5+dfsg-3ubuntu1~gcc5.1
4.0.5+dfsg-3ubuntu2
4.1.4-7
4.1.4-7ubuntu0.1
4.1.4-7ubuntu0.1+esm1
4.1.4-7ubuntu0.1+esm2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / zeromq3

Package

Name
zeromq3
Purl
pkg:deb/ubuntu/zeromq3@4.2.5-1ubuntu0.2+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

4.*

4.2.1-4ubuntu1
4.2.2-1ubuntu2
4.2.3-1
4.2.3-1build1
4.2.5-1
4.2.5-1ubuntu0.1
4.2.5-1ubuntu0.2
4.2.5-1ubuntu0.2+esm1
4.2.5-1ubuntu0.2+esm2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / zeromq3

Package

Name
zeromq3
Purl
pkg:deb/ubuntu/zeromq3@4.3.2-2ubuntu1?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*

4.3.2-1
4.3.2-2
4.3.2-2ubuntu1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / zeromq3

Package

Name
zeromq3
Purl
pkg:deb/ubuntu/zeromq3@4.3.4-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.3.4-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.3.4-1",
            "binary_name": "libzmq3-dev"
        },
        {
            "binary_version": "4.3.4-1",
            "binary_name": "libzmq5"
        },
        {
            "binary_version": "4.3.4-1",
            "binary_name": "libzmq5-dbgsym"
        }
    ]
}