GSD-2022-2601

Vulnerability from gsd - Updated: 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"
    }
  },
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        "ID": "CVE-2022-2601",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "grub2",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "grub2 2.06 and lower"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
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          }
        ]
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                "value": "CWE-122-\u003eCWE-787"
              }
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          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
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            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202311-14"
          }
        ]
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    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
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          "ID": "CVE-2022-2601"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            {
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              "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": {
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            {
              "description": [
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          "reference_data": [
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              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0",
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              "tags": [
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
            },
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              "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": 6.0
        }
      },
      "lastModifiedDate": "2023-11-25T12:15Z",
      "publishedDate": "2022-12-14T21:15Z"
    }
  }
}



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