CVE-2025-68819 (GCVE-0-2025-68819)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-10-19 18:15
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
Impacted products
Vendor Product Version
Linux Linux Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
Version: 60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-68819",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:05:32.291287Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-19T18:15:10.171Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.248",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.198",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.160",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.120",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.64",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "2.6.28",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable path is reached through an I2C_RDWR ioctl on the local /dev/i2c-N device; network, RF, and USB responses do not control rlen.\nAC:L - An attacker can reliably submit a two-message transaction with a second-message length up to 8192 bytes, requiring no race or condition outside their control.\nPR:L - The ioctl path has no capability or authentication check, so an unprivileged local account with ordinary device-node DAC access can trigger it.\nUI:N - Once the affected DVB adapter and i2c-dev interface are present, the attacker can trigger the overflow without another user\u0027s action.\nS:U - Exploitation compromises the host kernel from a local process without crossing a separate virtualization or IOMMU security authority.\nC:H - The attacker-controlled overflow can corrupt adjacent kernel objects and plausibly enable control-flow hijacking or primitives exposing arbitrary kernel memory.\nI:H - Up to 8192 attacker-controlled bytes are copied into an 80-byte heap object, providing a large heap-corruption primitive suitable for arbitrary modification or code execution.\nA:H - The overflow can corrupt critical kernel state and cause an oops or panic, while hardened bounds checking may itself terminate the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:11:46.937Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750"
        },
        {
          "url": "https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788"
        }
      ],
      "title": "media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68819",
    "datePublished": "2026-01-13T15:29:22.695Z",
    "dateReserved": "2025-12-24T10:30:51.048Z",
    "dateUpdated": "2026-10-19T18:15:10.171Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-68819\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-16T15:05:32.291287Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-16T15:05:32.820Z\"}}], \"cna\": {\"title\": \"media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The vulnerable path is reached through an I2C_RDWR ioctl on the local /dev/i2c-N device; network, RF, and USB responses do not control rlen.\\nAC:L - An attacker can reliably submit a two-message transaction with a second-message length up to 8192 bytes, requiring no race or condition outside their control.\\nPR:L - The ioctl path has no capability or authentication check, so an unprivileged local account with ordinary device-node DAC access can trigger it.\\nUI:N - Once the affected DVB adapter and i2c-dev interface are present, the attacker can trigger the overflow without another user\u0027s action.\\nS:U - Exploitation compromises the host kernel from a local process without crossing a separate virtualization or IOMMU security authority.\\nC:H - The attacker-controlled overflow can corrupt adjacent kernel objects and plausibly enable control-flow hijacking or primitives exposing arbitrary kernel memory.\\nI:H - Up to 8192 attacker-controlled bytes are copied into an 80-byte heap object, providing a large heap-corruption primitive suitable for arbitrary modification or code execution.\\nA:H - The overflow can corrupt critical kernel state and cause an oops or panic, while hardened bounds checking may itself terminate the kernel.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"c2c293ea7b61f12cdaad1e99a5b4efc58c88960a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"c2305b4c5fc15e20ac06c35738e0578eb4323750\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"61f214a878e96e2a8750bf96a98f78c658dba60c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"4a54d8fcb093761e4c56eb211cf4e39bf8401fa1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"fe3e129ab49806aaaa3f22067ebc75c2dfbe4658\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"ac92151ff2494130d9fc686055d6bbb9743a673e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"60688d5e6e6e2ae62f29762d1e3b2aec2dbd3817\", \"lessThan\": \"b91e6aafe8d356086cc621bc03e35ba2299e4788\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/media/usb/dvb-usb/dtv5100.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.28\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.28\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.248\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.160\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/media/usb/dvb-usb/dtv5100.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a\"}, {\"url\": \"https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750\"}, {\"url\": \"https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c\"}, {\"url\": \"https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1\"}, {\"url\": \"https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658\"}, {\"url\": \"https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e\"}, {\"url\": \"https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.248\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.198\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.160\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.120\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.64\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.3\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"2.6.28\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T12:11:46.937Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-68819\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T18:15:10.171Z\", \"dateReserved\": \"2025-12-24T10:30:51.048Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-01-13T15:29:22.695Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.