{
  "id": "CVE-2021-27502",
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "published": "2023-11-21T18:15:07.510",
  "lastModified": "2023-11-21T20:31:33.013",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "Texas Instruments TI-RTOS, when configured to use HeapMem heap(default),\n malloc returns a valid pointer to a small buffer on extremely large \nvalues, which can trigger an integer overflow vulnerability in \n'HeapMem_allocUnprotected' and result in code execution."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04",
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.ti.com/tool/TI-RTOS-MCU",
      "source": "ics-cert@hq.dhs.gov"
    }
  ]
}