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vuln-ubuntu/data/osv/usn/USN-5091-2.json
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{
"schema_version": "1.7.0",
"id": "USN-5091-2",
"summary": "linux-raspi, linux-raspi-5.4 vulnerabilities",
"details": "Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk\ndiscovered that the BPF verifier in the Linux kernel missed possible\nmispredicted branches due to type confusion, allowing a side-channel\nattack. An attacker could use this to expose sensitive information.\n(CVE-2021-33624)\n\nIt was discovered that the tracing subsystem in the Linux kernel did not\nproperly keep track of per-cpu ring buffer state. A privileged attacker\ncould use this to cause a denial of service. (CVE-2021-3679)\n\nIt was discovered that the Virtio console implementation in the Linux\nkernel did not properly validate input lengths in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2021-38160)\n\nMichael Wakabayashi discovered that the NFSv4 client implementation in the\nLinux kernel did not properly order connection setup operations. An\nattacker controlling a remote NFS server could use this to cause a denial\nof service on the client. (CVE-2021-38199)\n\nIt was discovered that the MAX-3421 host USB device driver in the Linux\nkernel did not properly handle device removal events. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2021-38204)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-3679",
"UBUNTU-CVE-2021-33624",
"UBUNTU-CVE-2021-38160",
"UBUNTU-CVE-2021-38199",
"UBUNTU-CVE-2021-38204"
],
"related": [],
"published": "2021-09-30T15:51:19Z",
"modified": "2026-06-03T10:45:26Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "linux-raspi-5.4",
"purl": "pkg:deb/ubuntu/linux-raspi-5.4@5.4.0-1044.48~18.04.1?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.0-1044.48~18.04.1"
}
]
}
],
"versions": [
"5.4.0-1013.13~18.04.1",
"5.4.0-1015.15~18.04.1",
"5.4.0-1016.17~18.04.1",
"5.4.0-1018.20~18.04.1",
"5.4.0-1019.21~18.04.1",
"5.4.0-1021.24~18.04.1",
"5.4.0-1022.25~18.04.1",
"5.4.0-1023.26~18.04.1",
"5.4.0-1025.28~18.04.1",
"5.4.0-1026.29~18.04.1",
"5.4.0-1028.31~18.04.1",
"5.4.0-1029.32~18.04.1",
"5.4.0-1030.33~18.04.1",
"5.4.0-1032.35~18.04.1",
"5.4.0-1033.36~18.04.1",
"5.4.0-1034.37~18.04.1",
"5.4.0-1035.38~18.04.1",
"5.4.0-1036.39~18.04.1",
"5.4.0-1038.41~18.04.1",
"5.4.0-1041.45~18.04.1",
"5.4.0-1042.46~18.04.3",
"5.4.0-1043.47~18.04.1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-headers-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-image-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-modules-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-raspi-5.4-headers-5.4.0-1044",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-raspi-5.4-tools-5.4.0-1044",
"binary_version": "5.4.0-1044.48~18.04.1"
},
{
"binary_name": "linux-tools-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48~18.04.1"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-3679",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-33624",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38160",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38199",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38204",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "linux-raspi",
"purl": "pkg:deb/ubuntu/linux-raspi@5.4.0-1044.48?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.0-1044.48"
}
]
}
],
"versions": [
"5.4.0-1007.7",
"5.4.0-1008.8",
"5.4.0-1011.11",
"5.4.0-1012.12",
"5.4.0-1013.13",
"5.4.0-1015.15",
"5.4.0-1016.17",
"5.4.0-1018.20",
"5.4.0-1019.21",
"5.4.0-1021.24",
"5.4.0-1022.25",
"5.4.0-1023.26",
"5.4.0-1025.28",
"5.4.0-1026.29",
"5.4.0-1028.31",
"5.4.0-1029.32",
"5.4.0-1030.33",
"5.4.0-1032.35",
"5.4.0-1033.36",
"5.4.0-1034.37",
"5.4.0-1035.38",
"5.4.0-1036.39",
"5.4.0-1038.41",
"5.4.0-1041.45",
"5.4.0-1042.46",
"5.4.0-1043.47"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "linux-buildinfo-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-headers-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-image-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-modules-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-raspi-headers-5.4.0-1044",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-raspi-tools-5.4.0-1044",
"binary_version": "5.4.0-1044.48"
},
{
"binary_name": "linux-tools-5.4.0-1044-raspi",
"binary_version": "5.4.0-1044.48"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-3679",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-33624",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38160",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38199",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-38204",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5091-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-3679"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-33624"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-38160"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-38199"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-38204"
}
]
}
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