FKIE_CVE-2025-68819

Vulnerability from fkie_nvd - Published: 2026-01-13 16:16 - Updated: 2026-10-19 19:17
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg() rlen value is a user-controlled value, but dtv5100_i2c_msg() does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeof(st->data), an out-of-bounds vuln occurs for st->data. Therefore, we need to add proper range checking to prevent this vuln.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/dvb-usb/dtv5100.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c2c293ea7b61f12cdaad1e99a5b4efc58c88960a",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "c2305b4c5fc15e20ac06c35738e0578eb4323750",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "61f214a878e96e2a8750bf96a98f78c658dba60c",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "4a54d8fcb093761e4c56eb211cf4e39bf8401fa1",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "fe3e129ab49806aaaa3f22067ebc75c2dfbe4658",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "ac92151ff2494130d9fc686055d6bbb9743a673e",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            },
            {
              "lessThan": "b91e6aafe8d356086cc621bc03e35ba2299e4788",
              "status": "affected",
              "version": "60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/dvb-usb/dtv5100.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.28"
            },
            {
              "lessThan": "2.6.28",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.248",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()\n\nrlen value is a user-controlled value, but dtv5100_i2c_msg() does not\ncheck the size of the rlen value. Therefore, if it is set to a value\nlarger than sizeof(st-\u003edata), an out-of-bounds vuln occurs for st-\u003edata.\n\nTherefore, we need to add proper range checking to prevent this vuln."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: dvb-usb: dtv5100: correcci\u00f3n de acceso fuera de l\u00edmites en dtv5100_i2c_msg()\n\nEl valor de rlen es un valor controlado por el usuario, pero dtv5100_i2c_msg() no verifica el tama\u00f1o del valor de rlen. Por lo tanto, si se establece en un valor mayor que sizeof(st-\u0026gt;data), ocurre una vulnerabilidad de acceso fuera de l\u00edmites para st-\u0026gt;data.\n\nPor lo tanto, necesitamos a\u00f1adir una verificaci\u00f3n de rango adecuada para prevenir esta vulnerabilidad."
    }
  ],
  "id": "CVE-2025-68819",
  "lastModified": "2026-10-19T19:17:07.230",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-68819",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-16T15:05:32.291287Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-13T16:16:04.210",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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