CVE-2026-68348

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2781: bound firmware description string parsing The TAS2781 firmware parser reads several variable-length description strings with strlen() before checking that the string terminator is present inside the firmware blob. A malformed firmware image without a NUL terminator can therefore make the parser walk past the end of the firmware buffer before the later size checks run. Add a small bounded string-length helper and use it for all description fields that are parsed from the firmware buffer. Keep the existing size checks for the fixed bytes that follow each string.

Severity

HIGH

CVSS score

7.1 (v3.1)

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-10 13:20:26.723000

Last modified

2026-10-19 22:17:14.230000

View original CVE JSON

{
  "id": "CVE-2026-68348",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-08-10T13:20:26.723",
  "lastModified": "2026-10-19T22:17:14.230",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tas2781: bound firmware description string parsing\n\nThe TAS2781 firmware parser reads several variable-length description\nstrings with strlen() before checking that the string terminator is\npresent inside the firmware blob. A malformed firmware image without a\nNUL terminator can therefore make the parser walk past the end of the\nfirmware buffer before the later size checks run.\n\nAdd a small bounded string-length helper and use it for all description\nfields that are parsed from the firmware buffer. Keep the existing size\nchecks for the fixed bytes that follow each string."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "sound/soc/codecs/tas2781-fmwlib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "915f5eadebd29ba185ac506766a90120153b7e14",
              "lessThan": "3ddb0d3e36507615e5ef010a879357a54870adf5",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "915f5eadebd29ba185ac506766a90120153b7e14",
              "lessThan": "0ec45e80a82785ee147516fdecf5c93707dec119",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "915f5eadebd29ba185ac506766a90120153b7e14",
              "lessThan": "41ae2b7d37c3dd82302167496836cca9f0328374",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "915f5eadebd29ba185ac506766a90120153b7e14",
              "lessThan": "e75ef37d83c90b09bedb601624b47e168202b226",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "915f5eadebd29ba185ac506766a90120153b7e14",
              "lessThan": "bc889dfcea9294a1eae7f8e2f3573a90764ae4d0",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "sound/soc/codecs/tas2781-fmwlib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.5",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.5",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.148",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.101",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.42",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1.6",
              "lessThanOrEqual": "7.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-16T15:47:21.509614Z",
          "id": "CVE-2026-68348",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0ec45e80a82785ee147516fdecf5c93707dec119",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3ddb0d3e36507615e5ef010a879357a54870adf5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/41ae2b7d37c3dd82302167496836cca9f0328374",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bc889dfcea9294a1eae7f8e2f3573a90764ae4d0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e75ef37d83c90b09bedb601624b47e168202b226",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
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}