ghsa-6r4f-cg5f-j3p5
Vulnerability from github
Published
2025-12-16 15:30
Modified
2025-12-16 15:30
Details

In the Linux kernel, the following vulnerability has been resolved:

Input: pegasus-notetaker - fix potential out-of-bounds access

In the pegasus_notetaker driver, the pegasus_probe() function allocates the URB transfer buffer using the wMaxPacketSize value from the endpoint descriptor. An attacker can use a malicious USB descriptor to force the allocation of a very small buffer.

Subsequently, if the device sends an interrupt packet with a specific pattern (e.g., where the first byte is 0x80 or 0x42), the pegasus_parse_packet() function parses the packet without checking the allocated buffer size. This leads to an out-of-bounds memory access.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68217"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: pegasus-notetaker - fix potential out-of-bounds access\n\nIn the pegasus_notetaker driver, the pegasus_probe() function allocates\nthe URB transfer buffer using the wMaxPacketSize value from\nthe endpoint descriptor. An attacker can use a malicious USB descriptor\nto force the allocation of a very small buffer.\n\nSubsequently, if the device sends an interrupt packet with a specific\npattern (e.g., where the first byte is 0x80 or 0x42),\nthe pegasus_parse_packet() function parses the packet without checking\nthe allocated buffer size. This leads to an out-of-bounds memory access.",
  "id": "GHSA-6r4f-cg5f-j3p5",
  "modified": "2025-12-16T15:30:46Z",
  "published": "2025-12-16T15:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68217"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/015b719962696b793997e8deefac019f816aca77"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/084264e10e2ae8938a54355123ad977eb9df56d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36bc92b838ff72f62f2c17751a9013b29ead2513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69aeb507312306f73495598a055293fa749d454e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/763c3f4d2394a697d14af1335d3bb42f05c9409f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ab67eff6d654e34ba6da07c64761aa87c2a3c26"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4e746651bd74c38f581e1cf31651119a94de8cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d344ea1baf1946c90f0cd6f9daeb5f3e0a0ca479"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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