ghsa-pr45-j47f-755r
Vulnerability from github
Published
2022-07-07 00:00
Modified
2022-07-15 00:00
Details

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2021-3697"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-06T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.",
  "id": "GHSA-pr45-j47f-755r",
  "modified": "2022-07-15T00:00:25Z",
  "published": "2022-07-07T00:00:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3697"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1991687"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202209-12"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220930-0001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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