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vuln-ubuntu/data/osv/usn/USN-6492-1.json
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{
"schema_version": "1.7.0",
"id": "USN-6492-1",
"summary": "mosquitto vulnerabilities",
"details": "Kathrin Kleinhammer discovered that Mosquitto incorrectly handled certain\ninputs. If a user or an automated system were provided with a specially crafted\ninput, a remote attacker could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-34431)\n\nZhanxiang Song discovered that Mosquitto incorrectly handled certain inputs. If\na user or an automated system were provided with a specially crafted input, a\nremote attacker could possibly use this issue to cause an authorisation bypass.\nThis issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2021-34434)\n\nZhanxiang Song, Bin Yuan, DeQing Zou, and Hai Jin discovered that Mosquitto\nincorrectly handled certain inputs. If a user or an automated system were\nprovided with a specially crafted input, a remote attacker could possibly use\nthis issue to cause a denial of service. This issue only affected Ubuntu 20.04\nLTS and Ubuntu 22.04 LTS. (CVE-2021-41039)\n\nZhengjie Du discovered that Mosquitto incorrectly handled certain inputs. If a\nuser or an automated system were provided with a specially crafted input file,\na remote attacker could possibly use this issue to cause a denial of service.\n(CVE-2023-0809)\n\nIt was discovered that Mosquitto incorrectly handled certain inputs. If a user\nor an automated system were provided with a specially crafted input, a remote\nattacker could possibly use this issue to cause a denial of service.\n(CVE-2023-3592)\n\nMischa Bachmann discovered that Mosquitto incorrectly handled certain inputs.\nIf a user or an automated system were provided with a specially crafted input,\na remote attacker could possibly use this issue to cause a denial of service.\nThis issue was only fixed in Ubuntu 22.04 LTS and Ubuntu 23.04.\n(CVE-2023-28366)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-34431",
"UBUNTU-CVE-2021-34434",
"UBUNTU-CVE-2021-41039",
"UBUNTU-CVE-2023-0809",
"UBUNTU-CVE-2023-3592",
"UBUNTU-CVE-2023-28366"
],
"related": [],
"published": "2023-11-21T15:23:51Z",
"modified": "2026-04-22T07:37:06Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "mosquitto",
"purl": "pkg:deb/ubuntu/mosquitto@1.6.9-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.9-1ubuntu0.1~esm1"
}
]
}
],
"versions": [
"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": {
"binaries": [
{
"binary_name": "libmosquitto1",
"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"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"cves": [
{
"id": "CVE-2021-34431",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41039",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2023-0809",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2023-3592",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "mosquitto",
"purl": "pkg:deb/ubuntu/mosquitto@2.0.11-1ubuntu1.1?arch=source&distro=jammy"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.11-1ubuntu1.1"
}
]
}
],
"versions": [
"2.0.11-1",
"2.0.11-1build1",
"2.0.11-1ubuntu1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmosquitto1",
"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"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:22.04:LTS",
"cves": [
{
"id": "CVE-2021-34434",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41039",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2023-0809",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2023-3592",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2023-28366",
"severity": [
{
"type": "CVSS_V3",
"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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6492-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-34431"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-34434"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-41039"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-0809"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-3592"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-28366"
}
]
}
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