665 lines
19 KiB
JSON
665 lines
19 KiB
JSON
{
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"schema_version": "1.7.0",
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"id": "USN-4992-1",
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"summary": "grub2-signed, grub2-unsigned vulnerabilities",
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"details": "M\u00e1t\u00e9 Kukri discovered that the acpi command in GRUB 2 allowed privileged\nusers to load crafted ACPI tables when secure boot is enabled. An attacker\ncould use this to bypass UEFI Secure Boot restrictions. (CVE-2020-14372)\n\nChris Coulson discovered that the rmmod command in GRUB 2 contained a use-\nafter-free vulnerability. A local attacker could use this to execute\narbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2020-25632)\n\nChris Coulson discovered that a buffer overflow existed in the command line\nparser in GRUB 2. A local attacker could use this to execute arbitrary code\nand bypass UEFI Secure Boot restrictions. (CVE-2020-27749)\n\nIt was discovered that the cutmem command in GRUB 2 did not honor secure\nboot locking. A local attacker could use this to execute arbitrary code and\nbypass UEFI Secure Boot restrictions. (CVE-2020-27779)\n\nIt was discovered that the option parser in GRUB 2 contained a heap\noverflow vulnerability. A local attacker could use this to execute\narbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2021-20225)\n\nIt was discovered that the menu rendering implementation in GRUB 2 did not\nproperly calculate the amount of memory needed in some situations, leading\nto out-of-bounds writes. A local attacker could use this to execute\narbitrary code and bypass UEFI Secure Boot restrictions. (CVE-2021-20233)\n",
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"aliases": [],
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"upstream": [
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"UBUNTU-CVE-2020-14372",
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"UBUNTU-CVE-2020-25632",
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"UBUNTU-CVE-2020-27749",
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"UBUNTU-CVE-2020-27779",
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"UBUNTU-CVE-2021-20225",
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"UBUNTU-CVE-2021-20233"
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],
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"related": [],
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"published": "2021-06-18T03:57:46Z",
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"modified": "2026-04-27T14:11:27Z",
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"affected": [
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{
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"package": {
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"ecosystem": "Ubuntu:18.04:LTS",
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"name": "grub2-signed",
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"purl": "pkg:deb/ubuntu/grub2-signed@1.167~18.04.5?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": "1.167~18.04.5"
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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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"1.85",
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"1.86",
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"1.87",
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"1.89",
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"1.91",
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"1.92",
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"1.93",
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"1.93.1",
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"1.93.2",
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"1.93.3",
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"1.93.4",
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"1.93.5",
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"1.93.7",
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"1.93.8",
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"1.93.10",
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"1.93.11",
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"1.93.13",
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"1.93.14",
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"1.93.15",
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"1.93.16",
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"1.93.18",
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"1.93.19",
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"1.93.20",
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"1.93.21",
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"1.93.22",
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"1.93.24",
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"1.167~18.04.1",
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"1.167~18.04.3"
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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": "grub-efi-amd64-signed",
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"binary_version": "1.167~18.04.5+2.04-1ubuntu44.1.2"
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},
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{
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"binary_name": "grub-efi-arm64-signed",
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"binary_version": "1.167~18.04.5+2.04-1ubuntu44.1.2"
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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-2020-14372",
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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:H/PR:H/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:H/PR:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2020-25632",
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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:H/PR:H/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:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2020-27749",
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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:H/PR:H/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:H/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-2020-27779",
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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:H/PR:H/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:H/PR:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2021-20225",
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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:H/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-2021-20233",
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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:H/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": "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": "grub2-unsigned",
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"purl": "pkg:deb/ubuntu/grub2-unsigned@2.04-1ubuntu44.1.2?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": "2.04-1ubuntu44.1.2"
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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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"2.04-1ubuntu44",
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"2.04-1ubuntu44.1"
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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": "grub-efi-amd64",
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"binary_version": "2.04-1ubuntu44.1.2"
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},
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{
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"binary_name": "grub-efi-amd64-bin",
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"binary_version": "2.04-1ubuntu44.1.2"
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},
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{
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"binary_name": "grub-efi-arm64",
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"binary_version": "2.04-1ubuntu44.1.2"
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},
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{
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"binary_name": "grub-efi-arm64-bin",
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"binary_version": "2.04-1ubuntu44.1.2"
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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-2020-14372",
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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:H/PR:H/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:H/PR:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2020-25632",
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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:H/PR:H/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:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2020-27749",
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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:H/PR:H/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:H/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-2020-27779",
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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:H/PR:H/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:H/PR:H/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": "medium"
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}
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]
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},
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{
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"id": "CVE-2021-20225",
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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:H/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-2021-20233",
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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:H/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": "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:20.04:LTS",
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"name": "grub2-signed",
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"purl": "pkg:deb/ubuntu/grub2-signed@1.167.2?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": "1.167.2"
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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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"1.128",
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"1.129",
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"1.130",
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"1.131",
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"1.133",
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"1.134",
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"1.135",
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"1.136",
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"1.137",
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"1.138",
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"1.139",
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"1.140",
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"1.141",
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"1.142",
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"1.142.1",
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"1.142.3",
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"1.142.4",
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"1.142.5",
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"1.142.6",
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"1.142.8",
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"1.142.9",
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"1.142.10",
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"1.142.11",
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"1.167"
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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": "grub-efi-amd64-signed",
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"binary_version": "1.167.2+2.04-1ubuntu44.2"
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},
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{
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"binary_name": "grub-efi-arm64-signed",
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"binary_version": "1.167.2+2.04-1ubuntu44.2"
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}
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],
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"availability": "No subscription required"
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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-2020-14372",
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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:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
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},
|
|
{
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|
"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:H/PR:H/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": "medium"
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}
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]
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},
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|
{
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"id": "CVE-2020-25632",
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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:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
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|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
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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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"id": "CVE-2020-27749",
|
|
"severity": [
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|
{
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"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2020-27779",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
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"type": "Ubuntu",
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|
"score": "medium"
|
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}
|
|
]
|
|
},
|
|
{
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"id": "CVE-2021-20225",
|
|
"severity": [
|
|
{
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"type": "CVSS_V3",
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|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/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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"id": "CVE-2021-20233",
|
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"severity": [
|
|
{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
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},
|
|
{
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"type": "Ubuntu",
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"score": "medium"
|
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}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
}
|
|
},
|
|
{
|
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"package": {
|
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"ecosystem": "Ubuntu:20.04:LTS",
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"name": "grub2-unsigned",
|
|
"purl": "pkg:deb/ubuntu/grub2-unsigned@2.04-1ubuntu44.2?arch=source&distro=focal"
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|
},
|
|
"ranges": [
|
|
{
|
|
"type": "ECOSYSTEM",
|
|
"events": [
|
|
{
|
|
"introduced": "0"
|
|
},
|
|
{
|
|
"fixed": "2.04-1ubuntu44.2"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"versions": [
|
|
"2.04-1ubuntu44"
|
|
],
|
|
"ecosystem_specific": {
|
|
"binaries": [
|
|
{
|
|
"binary_name": "grub-efi-amd64",
|
|
"binary_version": "2.04-1ubuntu44.2"
|
|
},
|
|
{
|
|
"binary_name": "grub-efi-amd64-bin",
|
|
"binary_version": "2.04-1ubuntu44.2"
|
|
},
|
|
{
|
|
"binary_name": "grub-efi-arm64",
|
|
"binary_version": "2.04-1ubuntu44.2"
|
|
},
|
|
{
|
|
"binary_name": "grub-efi-arm64-bin",
|
|
"binary_version": "2.04-1ubuntu44.2"
|
|
}
|
|
],
|
|
"availability": "No subscription required"
|
|
},
|
|
"database_specific": {
|
|
"cves_map": {
|
|
"ecosystem": "Ubuntu:20.04:LTS",
|
|
"cves": [
|
|
{
|
|
"id": "CVE-2020-14372",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2020-25632",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2020-27749",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2020-27779",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2021-20225",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"id": "CVE-2021-20233",
|
|
"severity": [
|
|
{
|
|
"type": "CVSS_V3",
|
|
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
|
|
},
|
|
{
|
|
"type": "Ubuntu",
|
|
"score": "medium"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"type": "ADVISORY",
|
|
"url": "https://ubuntu.com/security/notices/USN-4992-1"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2020-14372"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2020-25632"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2020-27749"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2020-27779"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2021-20225"
|
|
},
|
|
{
|
|
"type": "REPORT",
|
|
"url": "https://ubuntu.com/security/CVE-2021-20233"
|
|
}
|
|
]
|
|
} |