UBUNTU-CVE-2021-41036

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Source
https://ubuntu.com/security/CVE-2021-41036
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41036.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-41036
Upstream
Published
2021-11-03T00:15:00Z
Modified
2026-05-20T16:05:08Z
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

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check rem_len size in readpacket.

References

Affected packages

Ubuntu:22.04:LTS / paho.mqtt.c

Package

Name
paho.mqtt.c
Purl
pkg:deb/ubuntu/paho.mqtt.c?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.3.9-1
1.3.9-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpaho-mqtt1.3",
            "binary_version": "1.3.9-1build1"
        },
        {
            "binary_name": "paho.mqtt.c-examples",
            "binary_version": "1.3.9-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41036.json"

Ubuntu:24.04:LTS / paho.mqtt.c

Package

Name
paho.mqtt.c
Purl
pkg:deb/ubuntu/paho.mqtt.c?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.3.12-1
1.3.13-1
1.3.13-1build1
1.3.13-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpaho-mqtt1.3",
            "binary_version": "1.3.13-1build2"
        },
        {
            "binary_name": "paho.mqtt.c-examples",
            "binary_version": "1.3.13-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41036.json"

Ubuntu:25.10 / paho.mqtt.c

Package

Name
paho.mqtt.c
Purl
pkg:deb/ubuntu/paho.mqtt.c?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.3.14-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpaho-mqtt1.3",
            "binary_version": "1.3.14-2"
        },
        {
            "binary_name": "paho.mqtt.c-examples",
            "binary_version": "1.3.14-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41036.json"

Ubuntu:26.04:LTS / paho.mqtt.c

Package

Name
paho.mqtt.c
Purl
pkg:deb/ubuntu/paho.mqtt.c?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.3.14-2
1.3.15-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpaho-mqtt1.3",
            "binary_version": "1.3.15-1"
        },
        {
            "binary_name": "paho.mqtt.c-examples",
            "binary_version": "1.3.15-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41036.json"