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FKIE_CVE-2025-38680

Vulnerability from fkie_nvd - Published: 2025-09-04 16:15 - Updated: 2026-06-17 09:17
Summary
In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format() The buffer length check before calling uvc_parse_format() only ensured that the buffer has at least 3 bytes (buflen > 2), buf the function accesses buffer[3], requiring at least 4 bytes. This can lead to an out-of-bounds read if the buffer has exactly 3 bytes. Fix it by checking that the buffer has at least 4 bytes in uvc_parse_format().

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          "vendor": "Linux",
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              "version": "2.6.26"
            },
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              "status": "unaffected",
              "version": "0",
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            },
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              "status": "unaffected",
              "version": "5.15.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.6.103",
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            },
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.43",
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            },
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              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.11",
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            },
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              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.2",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC CN 4100",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V5.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "configurations": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()\n\nThe buffer length check before calling uvc_parse_format() only ensured\nthat the buffer has at least 3 bytes (buflen \u003e 2), buf the function\naccesses buffer[3], requiring at least 4 bytes.\n\nThis can lead to an out-of-bounds read if the buffer has exactly 3 bytes.\n\nFix it by checking that the buffer has at least 4 bytes in\nuvc_parse_format()."
    }
  ],
  "id": "CVE-2025-38680",
  "lastModified": "2026-06-17T09:17:38.643",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-09-04T16:15:35.553",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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      "tags": [
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    },
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/ffdd82182953df643aa63d999b6f1653d0c93778"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    },
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      "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

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