UBUNTU-CVE-2023-0809

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Source
https://ubuntu.com/security/CVE-2023-0809
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-0809.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-0809
Upstream
Downstream
Related
Published
2023-10-02T19:15:00Z
Modified
2025-09-08T16:55:33Z
Severity
  • 5.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.

References

Affected packages

Ubuntu:Pro:20.04:LTS / mosquitto

Package

Name
mosquitto
Purl
pkg:deb/ubuntu/mosquitto@1.6.9-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.9-1ubuntu0.1~esm1

Affected versions

1.*

1.6.6-1
1.6.7-1
1.6.8-1
1.6.8-2
1.6.9-1~build1
1.6.9-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libmosquitto-dev",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmosquitto1",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmosquittopp-dev",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmosquittopp1",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mosquitto",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mosquitto-clients",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mosquitto-dev",
            "binary_version": "1.6.9-1ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:22.04:LTS / mosquitto

Package

Name
mosquitto
Purl
pkg:deb/ubuntu/mosquitto@2.0.11-1ubuntu1.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.11-1ubuntu1.1

Affected versions

2.*

2.0.11-1
2.0.11-1build1
2.0.11-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libmosquitto-dev",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "libmosquitto1",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "libmosquittopp-dev",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "libmosquittopp1",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "mosquitto",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "mosquitto-clients",
            "binary_version": "2.0.11-1ubuntu1.1"
        },
        {
            "binary_name": "mosquitto-dev",
            "binary_version": "2.0.11-1ubuntu1.1"
        }
    ]
}