CVE-2025-68217 (GCVE-0-2025-68217)
Vulnerability from cvelistv5
Published
2025-12-16 13:57
Modified
2025-12-16 13:57
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
Version: 1afca2b66aac7ac262d3511c68725e9e7053b40f
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/input/tablet/pegasus_notetaker.c"
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      ],
      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:57:12.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c4e746651bd74c38f581e1cf31651119a94de8cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/36bc92b838ff72f62f2c17751a9013b29ead2513"
        },
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          "url": "https://git.kernel.org/stable/c/015b719962696b793997e8deefac019f816aca77"
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          "url": "https://git.kernel.org/stable/c/084264e10e2ae8938a54355123ad977eb9df56d6"
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          "url": "https://git.kernel.org/stable/c/d344ea1baf1946c90f0cd6f9daeb5f3e0a0ca479"
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        },
        {
          "url": "https://git.kernel.org/stable/c/69aeb507312306f73495598a055293fa749d454e"
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      ],
      "title": "Input: pegasus-notetaker - fix potential out-of-bounds access",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68217",
    "datePublished": "2025-12-16T13:57:12.011Z",
    "dateReserved": "2025-12-16T13:41:40.256Z",
    "dateUpdated": "2025-12-16T13:57:12.011Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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