{
  "id": "CVE-2021-44421",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-03-10T17:44:15.447",
  "lastModified": "2022-03-15T15:22:28.337",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The pointer-validation logic in util/mem_util.rs in Occlum before 0.26.0 for Intel SGX acts as a confused deputy that allows a local attacker to access unauthorized information via side-channel analysis."
    },
    {
      "lang": "es",
      "value": "La l\u00f3gica de comprobaci\u00f3n de punteros en el archivo util/mem_util.rs en Occlum versiones anteriores a 0.26.0 para Intel SGX act\u00faa como una vulnerabilidad de tipo \"confused deputy\" que permite a un atacante local acceder a informaci\u00f3n no autorizada por medio de un an\u00e1lisis de canal lateral"
    }
  ],
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
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        "exploitabilityScore": 1.8,
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          "cpeMatch": [
            {
              "vulnerable": true,
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    {
      "url": "https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L130",
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      "url": "https://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249",
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}