USN-4823-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4823-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4823-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4823-1
Upstream
Related
Published
2021-03-15T22:03:48.412351Z
Modified
2025-10-13T04:35:24Z
Summary
mosquitto vulnerability
Details

It was discovered that Mosquitto incorrectly handled certain inputs. A remote attacker could possibly use this issue to cause a denial of service.

References

Affected packages

Ubuntu:Pro:16.04:LTS / mosquitto

Package

Name
mosquitto
Purl
pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.7+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.8-1ubuntu0.16.04.7+esm1

Affected versions

1.*

1.4.3-1
1.4.4-1
1.4.7-1
1.4.8-1
1.4.8-1build1
1.4.8-1ubuntu0.16.04.1
1.4.8-1ubuntu0.16.04.2
1.4.8-1ubuntu0.16.04.3
1.4.8-1ubuntu0.16.04.4
1.4.8-1ubuntu0.16.04.5
1.4.8-1ubuntu0.16.04.6
1.4.8-1ubuntu0.16.04.7

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "libmosquitto-dev"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "libmosquitto1"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "libmosquittopp-dev"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "libmosquittopp1"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "mosquitto"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "mosquitto-clients"
        },
        {
            "binary_version": "1.4.8-1ubuntu0.16.04.7+esm1",
            "binary_name": "mosquitto-dev"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2017-7655"
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:18.04:LTS / mosquitto

Package

Name
mosquitto
Purl
pkg:deb/ubuntu/mosquitto@1.4.15-2ubuntu0.18.04.3+esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.15-2ubuntu0.18.04.3+esm1

Affected versions

1.*

1.4.12-1
1.4.14-1
1.4.14-2
1.4.14-2build1
1.4.15-1
1.4.15-2
1.4.15-2ubuntu0.18.04.1
1.4.15-2ubuntu0.18.04.2
1.4.15-2ubuntu0.18.04.3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "libmosquitto-dev"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "libmosquitto1"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "libmosquittopp-dev"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "libmosquittopp1"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "mosquitto"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "mosquitto-clients"
        },
        {
            "binary_version": "1.4.15-2ubuntu0.18.04.3+esm1",
            "binary_name": "mosquitto-dev"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2017-7655"
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}