github - ghsa-c8f6-x9xm-x27g

ghsa-c8f6-x9xm-x27g

Vulnerability from github

Published

2022-12-14 21:30

Modified

2022-12-16 21:30

Severity ?

8.6 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-2601"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-12-14T21:15:00Z",
    "severity": "HIGH"
  },
  "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": "GHSA-c8f6-x9xm-x27g",
  "modified": "2022-12-16T21:30:43Z",
  "published": "2022-12-14T21:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2601"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202311-14"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230203-0004"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2022-2601

Vulnerability from cvelistv5

Published

2022-12-14 00:00

Modified

2024-08-22 01:13

Severity ?

Summary

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.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0
	https://security.netapp.com/advisory/ntap-20230203-0004/
	https://security.gentoo.org/glsa/202311-14	vendor-advisory

Impacted products

▼	Vendor	Product
	n/a	grub2

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-22T01:13:28.591Z",
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        "references": [
          {
            "url": "https://arstechnica.com/security/2024/08/a-patch-microsoft-spent-2-years-preparing-is-making-a-mess-for-some-linux-users/"
          },
          {
            "tags": [
              "x_transferred"
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2112975#c0"
          },
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            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230203-0004/"
          },
          {
            "name": "GLSA-202311-14",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-14"
          }
        ],
        "title": "CVE Program Container",
        "x_generator": {
          "engine": "ADPogram 0.0.1"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "grub2",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "grub2 2.06 and lower"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "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."
        }
      ],
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          "descriptions": [
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              "description": "CWE-122-\u003eCWE-787",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2023-11-25T12:06:24.538109",
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  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2022-2601",
    "datePublished": "2022-12-14T00:00:00",
    "dateReserved": "2022-08-01T00:00:00",
    "dateUpdated": "2024-08-22T01:13:28.591Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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