{
  "id": "CVE-2022-24936",
  "sourceIdentifier": "product-security@silabs.com",
  "published": "2022-11-02T18:15:10.470",
  "lastModified": "2022-11-03T16:41:30.327",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Out-of-Bounds error in GBL parser in Silicon Labs Gecko Bootloader version 4.0.1 and earlier allows attacker to overwrite flash Sign key and OTA decryption key via malicious bootloader upgrade."
    },
    {
      "lang": "es",
      "value": "El error fuera de l\u00edmites en el analizador GBL en Silicon Labs Gecko Bootloader versi\u00f3n 4.0.1 y anteriores permite al atacante sobrescribir la clave de firma flash y la clave de descifrado OTA mediante una actualizaci\u00f3n maliciosa del gestor de arranque."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      },
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        "source": "product-security@silabs.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.3,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.5
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "source": "product-security@silabs.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:silabs:gecko_bootloader:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "4.0.1",
              "matchCriteriaId": "05C71F13-1B46-4919-AD6F-B63BE2A3430A"
            }
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  ],
  "references": [
    {
      "url": "https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Gdop4QAB?operationContext=S1",
      "source": "product-security@silabs.com",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/SiliconLabs/gecko_sdk/blame/2e82050dc8823c9fe0e8908c1b2666fb83056230/platform/bootloader/core/btl_bootload.c",
      "source": "product-security@silabs.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}