402 lines
12 KiB
JSON
402 lines
12 KiB
JSON
{
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"schema_version": "1.7.0",
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"id": "USN-5073-2",
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"summary": "linux-gcp, linux-gcp-4.15 vulnerabilities",
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"details": "Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor\nimplementation for AMD processors in the Linux kernel allowed a guest VM to\ndisable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a\nguest VM could use this to read or write portions of the host's physical\nmemory. (CVE-2021-3656)\n\nMaxim Levitsky discovered that the KVM hypervisor implementation for AMD\nprocessors in the Linux kernel did not properly prevent a guest VM from\nenabling AVIC in nested guest VMs. An attacker in a guest VM could use this\nto write to portions of the host's physical memory. (CVE-2021-3653)\n\nNorbert Slusarek discovered that the CAN broadcast manger (bcm) protocol\nimplementation in the Linux kernel did not properly initialize memory in\nsome situations. A local attacker could use this to expose sensitive\ninformation (kernel memory). (CVE-2021-34693)\n\nMurray McAllister discovered that the joystick device interface in the\nLinux kernel did not properly validate data passed via an ioctl(). A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code on systems with a joystick device\nregistered. (CVE-2021-3612)\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",
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"aliases": [],
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"upstream": [
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"UBUNTU-CVE-2021-3612",
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"UBUNTU-CVE-2021-3653",
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"UBUNTU-CVE-2021-3656",
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"UBUNTU-CVE-2021-34693",
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"UBUNTU-CVE-2021-38160"
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],
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"related": [],
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"published": "2021-09-17T06:27:26Z",
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"modified": "2026-06-25T10:46:01Z",
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"affected": [
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{
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"package": {
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"ecosystem": "Ubuntu:Pro:16.04:LTS",
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"name": "linux-gcp",
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"purl": "pkg:deb/ubuntu/linux-gcp@4.15.0-1108.122~16.04.1?arch=source&distro=esm-infra/xenial"
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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": "4.15.0-1108.122~16.04.1"
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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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"4.10.0-1004.4",
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"4.10.0-1006.6",
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"4.10.0-1007.7",
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"4.10.0-1008.8",
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"4.10.0-1009.9",
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"4.13.0-1002.5",
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"4.13.0-1006.9",
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"4.13.0-1007.10",
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"4.13.0-1008.11",
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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-4.15.0-1108-gcp",
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"binary_version": "4.15.0-1108.122~16.04.1"
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},
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"binary_name": "linux-gcp-headers-4.15.0-1108",
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"binary_version": "4.15.0-1108.122~16.04.1"
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},
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{
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"binary_name": "linux-image-unsigned-4.15.0-1108-gcp",
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"binary_version": "4.15.0-1108.122~16.04.1"
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},
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{
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"binary_name": "linux-modules-4.15.0-1108-gcp",
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"binary_version": "4.15.0-1108.122~16.04.1"
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},
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"binary_name": "linux-modules-extra-4.15.0-1108-gcp",
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}
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],
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"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
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},
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"database_specific": {
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"cves_map": {
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"ecosystem": "Ubuntu:Pro:16.04:LTS",
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"cves": [
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{
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"id": "CVE-2021-3612",
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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: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": "medium"
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}
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]
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},
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{
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"id": "CVE-2021-3653",
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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": "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-2021-3656",
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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": "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-2021-34693",
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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:U/C:H/I:N/A:N"
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},
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{
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"type": "Ubuntu",
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"score": "low"
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}
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]
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},
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{
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"id": "CVE-2021-38160",
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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: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": "medium"
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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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"package": {
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"ecosystem": "Ubuntu:18.04:LTS",
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"name": "linux-gcp-4.15",
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"purl": "pkg:deb/ubuntu/linux-gcp-4.15@4.15.0-1108.122?arch=source&distro=bionic"
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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": "4.15.0-1108.122"
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}
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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:18.04:LTS",
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"cves": [
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{
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"id": "CVE-2021-3612",
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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: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": "medium"
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}
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]
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},
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{
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"id": "CVE-2021-3653",
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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": "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-2021-3656",
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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": "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-2021-34693",
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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:U/C:H/I:N/A:N"
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},
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{
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"type": "Ubuntu",
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"score": "low"
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}
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]
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},
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{
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"id": "CVE-2021-38160",
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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: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": "medium"
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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-5073-2"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-3612"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-3653"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-3656"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-34693"
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},
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{
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"type": "REPORT",
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"url": "https://ubuntu.com/security/CVE-2021-38160"
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}
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]
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} |