156 lines
4.6 KiB
JSON
156 lines
4.6 KiB
JSON
{
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"schema_version": "1.7.0",
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"id": "USN-4915-1",
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"summary": "linux-oem-5.6 vulnerabilities",
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"details": "It was discovered that the overlayfs implementation in the Linux kernel did\nnot properly validate the application of file system capabilities with\nrespect to user namespaces. A local attacker could use this to gain\nelevated privileges. (CVE-2021-3493)\n\nVincent Dehors discovered that the shiftfs file system in the Ubuntu Linux\nkernel did not properly handle faults in copy_from_user() when passing\nthrough ioctls to an underlying file system. A local attacker could use\nthis to cause a denial of service (memory exhaustion) or execute arbitrary\ncode. (CVE-2021-3492)\n",
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"aliases": [],
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"upstream": [
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"UBUNTU-CVE-2021-3492",
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"UBUNTU-CVE-2021-3493"
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],
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"related": [],
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"published": "2021-04-15T22:22:20Z",
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"modified": "2026-06-03T10:45:25Z",
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"affected": [
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{
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"package": {
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"ecosystem": "Ubuntu:20.04:LTS",
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"name": "linux-oem-5.6",
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"purl": "pkg:deb/ubuntu/linux-oem-5.6@5.6.0-1054.58?arch=source&distro=focal"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "5.6.0-1054.58"
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}
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]
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}
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],
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"versions": [
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"5.6.0-1007.7",
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"5.6.0-1008.8",
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"5.6.0-1010.10",
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"5.6.0-1011.11",
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"5.6.0-1013.13",
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"5.6.0-1017.17",
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"5.6.0-1018.18",
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"5.6.0-1020.20",
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"5.6.0-1021.21",
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"5.6.0-1023.23",
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"5.6.0-1026.26",
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"5.6.0-1027.27",
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"5.6.0-1028.28",
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"5.6.0-1031.32",
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"5.6.0-1032.33",
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"5.6.0-1033.35",
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"5.6.0-1034.36",
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"5.6.0-1035.37",
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"5.6.0-1036.39",
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"5.6.0-1039.43",
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"5.6.0-1042.46",
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"5.6.0-1047.51",
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"5.6.0-1048.52",
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"5.6.0-1050.54",
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"5.6.0-1052.56",
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"5.6.0-1053.57"
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],
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"ecosystem_specific": {
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"binaries": [
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{
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"binary_name": "linux-buildinfo-5.6.0-1054-oem",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-headers-5.6.0-1054-oem",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-image-unsigned-5.6.0-1054-oem",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-modules-5.6.0-1054-oem",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-oem-5.6-headers-5.6.0-1054",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-oem-5.6-tools-5.6.0-1054",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-oem-5.6-tools-host",
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"binary_version": "5.6.0-1054.58"
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},
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{
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"binary_name": "linux-tools-5.6.0-1054-oem",
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"binary_version": "5.6.0-1054.58"
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}
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],
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"availability": "No subscription required"
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},
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"database_specific": {
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"cves_map": {
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"ecosystem": "Ubuntu:20.04:LTS",
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"cves": [
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{
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"id": "CVE-2021-3492",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
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},
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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},
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{
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"type": "Ubuntu",
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"score": "high"
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}
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]
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},
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{
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"id": "CVE-2021-3493",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
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},
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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},
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{
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"type": "Ubuntu",
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"score": "high"
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}
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]
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}
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]
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}
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}
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}
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],
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"references": [
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{
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"type": "ADVISORY",
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"url": "https://ubuntu.com/security/notices/USN-4915-1"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-3492"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-3493"
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}
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]
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} |