cve-2020-15705
Vulnerability from cvelistv5
Published
2020-07-29 17:45
Modified
2024-09-17 00:06
Severity ?
6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
References
security@ubuntu.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.htmlMailing List, Third Party Advisory
security@ubuntu.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.htmlMailing List, Third Party Advisory
security@ubuntu.comhttp://ubuntu.com/security/notices/USN-4432-1Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2020/07/29/3Mailing List, Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/03/02/3Mailing List, Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/09/17/2Mailing List, Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/09/17/4Mailing List, Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/09/21/1Mailing List, Third Party Advisory
security@ubuntu.comhttps://access.redhat.com/security/vulnerabilities/grub2bootloaderThird Party Advisory
security@ubuntu.comhttps://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.htmlIssue Tracking, Vendor Advisory
security@ubuntu.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011Patch, Third Party Advisory, Vendor Advisory
security@ubuntu.comhttps://security.gentoo.org/glsa/202104-05Third Party Advisory
security@ubuntu.comhttps://security.netapp.com/advisory/ntap-20200731-0008/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/4432-1/Third Party Advisory
security@ubuntu.comhttps://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypassThird Party Advisory
security@ubuntu.comhttps://www.debian.org/security/2020-GRUB-UEFI-SecureBootThird Party Advisory
security@ubuntu.comhttps://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/Third Party Advisory
security@ubuntu.comhttps://www.openwall.com/lists/oss-security/2020/07/29/3Mailing List, Third Party Advisory
security@ubuntu.comhttps://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/Third Party Advisory
security@ubuntu.comhttps://www.suse.com/support/kb/doc/?id=000019673Third Party Advisory
Impacted products
Ubuntugrub2 in Ubuntu
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:22:30.823Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://ubuntu.com/security/notices/USN-4432-1"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "https://www.suse.com/support/kb/doc/?id=000019673"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
          },
          {
            "name": "[oss-security] 20200729 multiple secure boot grub2 and linux kernel vulnerabilities",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/07/29/3"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
          },
          {
            "name": "USN-4432-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4432-1/"
          },
          {
            "name": "openSUSE-SU-2020:1280",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html"
          },
          {
            "name": "openSUSE-SU-2020:1282",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html"
          },
          {
            "name": "[oss-security] 20210302 Multiple GRUB2 vulnerabilities",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/03/02/3"
          },
          {
            "name": "GLSA-202104-05",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202104-05"
          },
          {
            "name": "[oss-security] 20210916 Containers-optimized OS (COS) membership in the linux-distros list",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/09/17/2"
          },
          {
            "name": "[oss-security] 20210917 Re: Containers-optimized OS (COS) membership in the linux-distros list",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/09/17/4"
          },
          {
            "name": "[oss-security] 20210920 Re: Containers-optimized OS (COS) membership in the linux-distros list",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/09/21/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "grub2 in Ubuntu",
          "vendor": "Ubuntu",
          "versions": [
            {
              "lessThan": "2.04-1ubuntu26.1",
              "status": "affected",
              "version": "20.04 LTS",
              "versionType": "custom"
            },
            {
              "lessThan": "2.02-2ubuntu8.16",
              "status": "affected",
              "version": "18.04 LTS",
              "versionType": "custom"
            },
            {
              "lessThan": "2.02~beta2-36ubuntu3.26",
              "status": "affected",
              "version": "16.04 LTS",
              "versionType": "custom"
            },
            {
              "lessThan": "2.02~beta2-9ubuntu1.20",
              "status": "affected",
              "version": "14.04 ESM",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Mathieu Trudel-Lapierre"
        }
      ],
      "datePublic": "2020-07-29T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-21T11:06:32",
        "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "shortName": "canonical"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://ubuntu.com/security/notices/USN-4432-1"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
        },
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "https://www.suse.com/support/kb/doc/?id=000019673"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
        },
        {
          "name": "[oss-security] 20200729 multiple secure boot grub2 and linux kernel vulnerabilities",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/07/29/3"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
        },
        {
          "name": "USN-4432-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4432-1/"
        },
        {
          "name": "openSUSE-SU-2020:1280",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html"
        },
        {
          "name": "openSUSE-SU-2020:1282",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html"
        },
        {
          "name": "[oss-security] 20210302 Multiple GRUB2 vulnerabilities",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/03/02/3"
        },
        {
          "name": "GLSA-202104-05",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202104-05"
        },
        {
          "name": "[oss-security] 20210916 Containers-optimized OS (COS) membership in the linux-distros list",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/09/17/2"
        },
        {
          "name": "[oss-security] 20210917 Re: Containers-optimized OS (COS) membership in the linux-distros list",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/09/17/4"
        },
        {
          "name": "[oss-security] 20210920 Re: Containers-optimized OS (COS) membership in the linux-distros list",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/09/21/1"
        }
      ],
      "source": {
        "advisory": "USN 4432-1",
        "defect": [
          "https://launchpad.net/bugs/1801968"
        ],
        "discovery": "INTERNAL"
      },
      "title": "GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@ubuntu.com",
          "DATE_PUBLIC": "2020-07-29T17:00:00.000Z",
          "ID": "CVE-2020-15705",
          "STATE": "PUBLIC",
          "TITLE": "GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "grub2 in Ubuntu",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.04 LTS",
                            "version_value": "2.04-1ubuntu26.1"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "18.04 LTS",
                            "version_value": "2.02-2ubuntu8.16"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "16.04 LTS",
                            "version_value": "2.02~beta2-36ubuntu3.26"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "14.04 ESM",
                            "version_value": "2.02~beta2-9ubuntu1.20"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Ubuntu"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Mathieu Trudel-Lapierre"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-347 Improper Verification of Cryptographic Signature"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/",
              "refsource": "CONFIRM",
              "url": "https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/"
            },
            {
              "name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass",
              "refsource": "UBUNTU",
              "url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass"
            },
            {
              "name": "http://ubuntu.com/security/notices/USN-4432-1",
              "refsource": "UBUNTU",
              "url": "http://ubuntu.com/security/notices/USN-4432-1"
            },
            {
              "name": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot"
            },
            {
              "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011",
              "refsource": "CONFIRM",
              "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011"
            },
            {
              "name": "https://access.redhat.com/security/vulnerabilities/grub2bootloader",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/security/vulnerabilities/grub2bootloader"
            },
            {
              "name": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/",
              "refsource": "SUSE",
              "url": "https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/"
            },
            {
              "name": "https://www.suse.com/support/kb/doc/?id=000019673",
              "refsource": "SUSE",
              "url": "https://www.suse.com/support/kb/doc/?id=000019673"
            },
            {
              "name": "https://www.openwall.com/lists/oss-security/2020/07/29/3",
              "refsource": "CONFIRM",
              "url": "https://www.openwall.com/lists/oss-security/2020/07/29/3"
            },
            {
              "name": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html",
              "refsource": "CONFIRM",
              "url": "https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html"
            },
            {
              "name": "[oss-security] 20200729 multiple secure boot grub2 and linux kernel vulnerabilities",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/07/29/3"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200731-0008/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200731-0008/"
            },
            {
              "name": "USN-4432-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4432-1/"
            },
            {
              "name": "openSUSE-SU-2020:1280",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html"
            },
            {
              "name": "openSUSE-SU-2020:1282",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html"
            },
            {
              "name": "[oss-security] 20210302 Multiple GRUB2 vulnerabilities",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/03/02/3"
            },
            {
              "name": "GLSA-202104-05",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202104-05"
            },
            {
              "name": "[oss-security] 20210916 Containers-optimized OS (COS) membership in the linux-distros list",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/09/17/2"
            },
            {
              "name": "[oss-security] 20210917 Re: Containers-optimized OS (COS) membership in the linux-distros list",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/09/17/4"
            },
            {
              "name": "[oss-security] 20210920 Re: Containers-optimized OS (COS) membership in the linux-distros list",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/09/21/1"
            }
          ]
        },
        "source": {
          "advisory": "USN 4432-1",
          "defect": [
            "https://launchpad.net/bugs/1801968"
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2020-15705",
    "datePublished": "2020-07-29T17:45:33.422001Z",
    "dateReserved": "2020-07-14T00:00:00",
    "dateUpdated": "2024-09-17T00:06:01.169Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-15705\",\"sourceIdentifier\":\"security@ubuntu.com\",\"published\":\"2020-07-29T18:15:14.187\",\"lastModified\":\"2022-04-18T15:22:21.303\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.\"},{\"lang\":\"es\",\"value\":\"GRUB2 presenta un fallo al comprobar la firma del kernel cuando se inicia directamente sin cu\u00f1a, permitiendo que el arranque seguro sea omitido. Esto solo afecta a los sistemas en los que el certificado de firma del kernel ha sido importado directamente a la base de datos de arranque seguro y la imagen de GRUB es iniciada directamente sin el uso de cu\u00f1a. Este problema afecta a GRUB2 versiones 2.04 y versiones anteriores\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.5,\"impactScore\":5.9},{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.5,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:P/I:P/A:P\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":4.4},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]},{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.04\",\"matchCriteriaId\":\"FC3627EF-FE69-44D7-96D5-E40FF30ED38B\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:enterprise_linux_atomic_host:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AF483911-003B-470B-A12B-85EF34A50469\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"932D137F-528B-4526-9A89-CD59FA1AB0FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B620311B-34A3-48A6-82DF-6F078D7A4493\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B009C22E-30A4-4288-BCF6-C3E81DEAF45A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"142AD0DD-4CF3-4D74-9442-459CE3347E3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:11:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"93AD897C-C9F7-4B4D-BC39-5E13920383D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9C649194-B8C2-49F7-A819-C635EE584ABF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:15:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AF73A3D9-6566-4CBF-AA5F-5A4B99719A1D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"21540673-614A-4D40-8BD7-3F07723803B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83B14968-3985-43C3-ACE5-8307196EFAE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CB85C75-4D35-480E-843D-60579EC75FCB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6B8F3DD2-A145-4AF1-8545-CC42892DA3D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FB5CDAE-C713-4D9D-9D6A-2C2E8924A4BB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E9273B95-20ED-4547-B0A8-95AD15B30372\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AAE74AF3-C559-4645-A6C0-25C3D647AAC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C6CE5198-C498-4672-AF4C-77AB4BE06C5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A7DF96F8-BA6A-4780-9CA3-F719B3F81074\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB18C4CE-5917-401E-ACF7-2747084FD36E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5B921FDB-8E7D-427E-82BE-4432585080CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C253A63F-03AB-41CB-A03A-B2674DEA98AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B60D940-80C7-49F0-8F4E-3F99AC15FA82\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB79EE26-FC32-417D-A49C-A1A63165A968\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://ubuntu.com/security/notices/USN-4432-1\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2020/07/29/3\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/03/02/3\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/17/2\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/17/4\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/21/1\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/security/vulnerabilities/grub2bootloader\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Patch\",\"Third Party Advisory\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202104-05\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20200731-0008/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4432-1/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openwall.com/lists/oss-security/2020/07/29/3\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.suse.com/support/kb/doc/?id=000019673\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.