gsd-2022-2601
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
Aliases
Aliases
CVE-2022-2601


To clipboard 

{
   GSD: {
      alias: "CVE-2022-2601",
      description: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
      id: "GSD-2022-2601",
      references: [
         "https://www.debian.org/security/2022/dsa-5280",
         "https://access.redhat.com/errata/RHSA-2022:8494",
         "https://access.redhat.com/errata/RHSA-2022:8800",
         "https://access.redhat.com/errata/RHSA-2022:8978",
         "https://access.redhat.com/errata/RHSA-2023:0047",
         "https://access.redhat.com/errata/RHSA-2023:0048",
         "https://access.redhat.com/errata/RHSA-2023:0049",
         "https://www.suse.com/security/cve/CVE-2022-2601.html",
         "https://access.redhat.com/errata/RHSA-2023:0752",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2022-2601",
         ],
         details: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
         id: "GSD-2022-2601",
         modified: "2023-12-13T01:19:20.189496Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2022-2601",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "grub2",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "grub2 2.06 and lower",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-122->CWE-787",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
                  refsource: "MISC",
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20230203-0004/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20230203-0004/",
               },
               {
                  name: "GLSA-202311-14",
                  refsource: "GENTOO",
                  url: "https://security.gentoo.org/glsa/202311-14",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndIncluding: "2.06",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_eus:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "secalert@redhat.com",
               ID: "CVE-2022-2601",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-122",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
                     refsource: "MISC",
                     tags: [
                        "Issue Tracking",
                        "Third Party Advisory",
                     ],
                     url: "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20230203-0004/",
                     refsource: "CONFIRM",
                     tags: [],
                     url: "https://security.netapp.com/advisory/ntap-20230203-0004/",
                  },
                  {
                     name: "GLSA-202311-14",
                     refsource: "",
                     tags: [],
                     url: "https://security.gentoo.org/glsa/202311-14",
                  },
               ],
            },
         },
         impact: {
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 8.6,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "NONE",
                  scope: "CHANGED",
                  userInteraction: "REQUIRED",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 1.8,
               impactScore: 6,
            },
         },
         lastModifiedDate: "2023-11-25T12:15Z",
         publishedDate: "2022-12-14T21:15Z",
      },
   },
}


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