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OESA-2023-1720 (CVE-2023-4692)

Vulnerability from osv_openeuler – Published: 2023-10-13 11:06 – Updated: 2026-08-06 11:06 – Source website
VLAI
Summary
grub2 security update
Details

GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.

Security Fix(es):

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.(CVE-2023-4692)

An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.(CVE-2023-4693)


{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-tools-minimal-2.04-31.oe1.aarch64.rpm",
          "grub2-efi-aa64-2.04-31.oe1.aarch64.rpm",
          "grub2-debuginfo-2.04-31.oe1.aarch64.rpm",
          "grub2-tools-extra-2.04-31.oe1.aarch64.rpm",
          "grub2-debugsource-2.04-31.oe1.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.04-31.oe1.aarch64.rpm",
          "grub2-tools-2.04-31.oe1.aarch64.rpm"
        ],
        "noarch": [
          "grub2-efi-aa64-modules-2.04-31.oe1.noarch.rpm",
          "grub2-efi-ia32-modules-2.04-31.oe1.noarch.rpm",
          "grub2-pc-modules-2.04-31.oe1.noarch.rpm",
          "grub2-help-2.04-31.oe1.noarch.rpm",
          "grub2-efi-x64-modules-2.04-31.oe1.noarch.rpm",
          "grub2-common-2.04-31.oe1.noarch.rpm"
        ],
        "src": [
          "grub2-2.04-31.oe1.src.rpm"
        ],
        "x86_64": [
          "grub2-efi-x64-cdboot-2.04-31.oe1.x86_64.rpm",
          "grub2-tools-minimal-2.04-31.oe1.x86_64.rpm",
          "grub2-tools-extra-2.04-31.oe1.x86_64.rpm",
          "grub2-efi-ia32-2.04-31.oe1.x86_64.rpm",
          "grub2-debugsource-2.04-31.oe1.x86_64.rpm",
          "grub2-debuginfo-2.04-31.oe1.x86_64.rpm",
          "grub2-pc-2.04-31.oe1.x86_64.rpm",
          "grub2-efi-x64-2.04-31.oe1.x86_64.rpm",
          "grub2-tools-2.04-31.oe1.x86_64.rpm",
          "grub2-tools-efi-2.04-31.oe1.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.04-31.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.04-31.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-tools-extra-2.04-36.oe1.aarch64.rpm",
          "grub2-debugsource-2.04-36.oe1.aarch64.rpm",
          "grub2-tools-2.04-36.oe1.aarch64.rpm",
          "grub2-efi-aa64-2.04-36.oe1.aarch64.rpm",
          "grub2-debuginfo-2.04-36.oe1.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.04-36.oe1.aarch64.rpm",
          "grub2-tools-minimal-2.04-36.oe1.aarch64.rpm"
        ],
        "noarch": [
          "grub2-efi-x64-modules-2.04-36.oe1.noarch.rpm",
          "grub2-pc-modules-2.04-36.oe1.noarch.rpm",
          "grub2-efi-aa64-modules-2.04-36.oe1.noarch.rpm",
          "grub2-efi-ia32-modules-2.04-36.oe1.noarch.rpm",
          "grub2-common-2.04-36.oe1.noarch.rpm",
          "grub2-help-2.04-36.oe1.noarch.rpm"
        ],
        "src": [
          "grub2-2.04-36.oe1.src.rpm"
        ],
        "x86_64": [
          "grub2-debuginfo-2.04-36.oe1.x86_64.rpm",
          "grub2-debugsource-2.04-36.oe1.x86_64.rpm",
          "grub2-tools-efi-2.04-36.oe1.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.04-36.oe1.x86_64.rpm",
          "grub2-tools-minimal-2.04-36.oe1.x86_64.rpm",
          "grub2-tools-2.04-36.oe1.x86_64.rpm",
          "grub2-efi-ia32-2.04-36.oe1.x86_64.rpm",
          "grub2-efi-x64-2.04-36.oe1.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.04-36.oe1.x86_64.rpm",
          "grub2-pc-2.04-36.oe1.x86_64.rpm",
          "grub2-tools-extra-2.04-36.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.04-36.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-efi-aa64-2.06-38.oe2203.aarch64.rpm",
          "grub2-tools-extra-2.06-38.oe2203.aarch64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203.aarch64.rpm",
          "grub2-debugsource-2.06-38.oe2203.aarch64.rpm",
          "grub2-debuginfo-2.06-38.oe2203.aarch64.rpm",
          "grub2-tools-2.06-38.oe2203.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.06-38.oe2203.aarch64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-tools-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-efi-aa64-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-efi-aa64-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-2.06-38.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "grub2-efi-x64-modules-2.06-38.oe2203.noarch.rpm",
          "grub2-efi-aa64-modules-2.06-38.oe2203.noarch.rpm",
          "grub2-efi-ia32-modules-2.06-38.oe2203.noarch.rpm",
          "grub2-common-2.06-38.oe2203.noarch.rpm",
          "grub2-help-2.06-38.oe2203.noarch.rpm",
          "grub2-pc-modules-2.06-38.oe2203.noarch.rpm",
          "grub2-common-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-x64-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-pc-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-aa64-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-ia32-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-help-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-pc-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-x64-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-common-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-ia32-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-help-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-aa64-modules-2.06-38.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "grub2-2.06-38.oe2203.src.rpm",
          "grub2-2.06-38.oe2203sp1.src.rpm",
          "grub2-2.06-38.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "grub2-tools-extra-2.06-38.oe2203.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.06-38.oe2203.x86_64.rpm",
          "grub2-debugsource-2.06-38.oe2203.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.06-38.oe2203.x86_64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203.x86_64.rpm",
          "grub2-debuginfo-2.06-38.oe2203.x86_64.rpm",
          "grub2-efi-x64-2.06-38.oe2203.x86_64.rpm",
          "grub2-tools-efi-2.06-38.oe2203.x86_64.rpm",
          "grub2-efi-ia32-2.06-38.oe2203.x86_64.rpm",
          "grub2-tools-2.06-38.oe2203.x86_64.rpm",
          "grub2-pc-2.06-38.oe2203.x86_64.rpm",
          "grub2-tools-efi-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-ia32-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-pc-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-x64-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-efi-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-ia32-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-x64-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-pc-2.06-38.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-38.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-tools-minimal-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-tools-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-efi-aa64-cdboot-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp1.aarch64.rpm",
          "grub2-efi-aa64-2.06-38.oe2203sp1.aarch64.rpm"
        ],
        "noarch": [
          "grub2-common-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-x64-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-pc-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-aa64-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-efi-ia32-modules-2.06-38.oe2203sp1.noarch.rpm",
          "grub2-help-2.06-38.oe2203sp1.noarch.rpm"
        ],
        "src": [
          "grub2-2.06-38.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "grub2-tools-efi-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-ia32-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-pc-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-efi-x64-2.06-38.oe2203sp1.x86_64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-38.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "grub2-efi-aa64-cdboot-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-efi-aa64-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp2.aarch64.rpm",
          "grub2-tools-2.06-38.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "grub2-pc-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-x64-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-common-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-ia32-modules-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-help-2.06-38.oe2203sp2.noarch.rpm",
          "grub2-efi-aa64-modules-2.06-38.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "grub2-2.06-38.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "grub2-tools-efi-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-extra-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-debuginfo-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-ia32-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-ia32-cdboot-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-debugsource-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-x64-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-tools-minimal-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-efi-x64-cdboot-2.06-38.oe2203sp2.x86_64.rpm",
          "grub2-pc-2.06-38.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP2",
        "name": "grub2",
        "purl": "pkg:rpm/openEuler/grub2\u0026distro=openEuler-22.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.06-38.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn.\r\n\r\nSecurity Fix(es):\r\n\r\nAn out-of-bounds write flaw was found in grub2\u0026apos;s NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub\u0026apos;s heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.(CVE-2023-4692)\r\n\r\nAn out-of-bounds read flaw was found on grub2\u0026apos;s NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.(CVE-2023-4693)",
  "id": "OESA-2023-1720",
  "modified": "2026-08-06T11:06:10Z",
  "published": "2023-10-13T11:06:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1720"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4692"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4693"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "grub2 security update",
  "upstream": [
    "CVE-2023-4692",
    "CVE-2023-4693"
  ]
}



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