Files
vuln-ubuntu/data/osv/usn/USN-5186-1.json
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{
"schema_version": "1.7.0",
"id": "USN-5186-1",
"summary": "firefox vulnerabilities",
"details": "Multiple security issues were discovered in Firefox. If a user were\ntricked into opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, obtain sensitive\ninformation, conduct spoofing attacks, bypass CSP restrictions, or\nexecute arbitrary code. (CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,\nCVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,\nCVE-2021-43545, CVE-2021-43546)\n\nA security issue was discovered with the handling of WebExtension\npermissions. If a user were tricked into installing a specially crafted\nextension, an attacker could potentially exploit this to create and\ninstall a service worker that wouldn't be uninstalled with the extension.\n(CVE-2021-43540)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-43536",
"UBUNTU-CVE-2021-43537",
"UBUNTU-CVE-2021-43538",
"UBUNTU-CVE-2021-43539",
"UBUNTU-CVE-2021-43540",
"UBUNTU-CVE-2021-43541",
"UBUNTU-CVE-2021-43542",
"UBUNTU-CVE-2021-43543",
"UBUNTU-CVE-2021-43545",
"UBUNTU-CVE-2021-43546"
],
"related": [],
"published": "2021-12-09T18:55:33Z",
"modified": "2026-04-22T07:37:00Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "firefox",
"purl": "pkg:deb/ubuntu/firefox@95.0+build1-0ubuntu0.18.04.1?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "95.0+build1-0ubuntu0.18.04.1"
}
]
}
],
"versions": [
"56.0+build6-0ubuntu1",
"57.0.1+build2-0ubuntu1",
"59.0.1+build1-0ubuntu1",
"59.0.2+build1-0ubuntu1",
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"94.0+build3-0ubuntu0.18.04.1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "firefox",
"binary_version": "95.0+build1-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-geckodriver",
"binary_version": "95.0+build1-0ubuntu0.18.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "95.0+build1-0ubuntu0.18.04.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-43536",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43537",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43538",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43539",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43540",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43541",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43542",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43543",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43545",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43546",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "firefox",
"purl": "pkg:deb/ubuntu/firefox@95.0+build1-0ubuntu0.20.04.1?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "95.0+build1-0ubuntu0.20.04.1"
}
]
}
],
"versions": [
"69.0.3+build1-0ubuntu1",
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"70.0+build2-0ubuntu2",
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"ecosystem_specific": {
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{
"binary_name": "firefox",
"binary_version": "95.0+build1-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-geckodriver",
"binary_version": "95.0+build1-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "95.0+build1-0ubuntu0.20.04.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-43536",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43537",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43538",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43539",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43540",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43541",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43542",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43543",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43545",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-43546",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5186-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43536"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43537"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43538"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43539"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43540"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43541"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43542"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43543"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43545"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-43546"
}
]
}