FKIE_CVE-2021-22552

Vulnerability from fkie_nvd - Published: 2021-08-02 16:15 - Updated: 2024-11-21 05:50
Severity ?
5.3 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
An untrusted memory read vulnerability in Asylo versions up to 0.6.1 allows an untrusted attacker to pass a syscall number in MessageReader that is then used by sysno() and can bypass validation. This can allow the attacker to read memory from within the secure enclave. We recommend updating to Asylo 0.6.3 or past https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a
References
cve-coordination@google.comhttps://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1aExploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1aExploit, Patch, Third Party Advisory
Impacted products
Vendor Product Version
google asylo *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D3DBB15C-13B3-4E86-837A-C297F290AED4",
              "versionEndIncluding": "0.6.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An untrusted memory read vulnerability in Asylo versions up to 0.6.1 allows an untrusted attacker to pass a syscall number in MessageReader that is then used by sysno() and can bypass validation. This can allow the attacker to read memory from within the secure enclave. We recommend updating to Asylo 0.6.3 or past https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de lectura de memoria no confiable en Asylo versiones hasta 0.6.1, permite a un atacante no confiable pasar un n\u00famero de syscall en MessageReader que luego es usado por la funci\u00f3n sysno() y puede omitir una comprobaci\u00f3n. Esto puede permitir al atacante leer la memoria desde el enclave seguro. Recomendamos actualizar a Asylo versi\u00f3n 0.6.3 o a versi\u00f3n anterior https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a"
    }
  ],
  "id": "CVE-2021-22552",
  "lastModified": "2024-11-21T05:50:19.090",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
          "version": "3.1"
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        "impactScore": 4.2,
        "source": "cve-coordination@google.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
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        "source": "nvd@nist.gov",
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  "published": "2021-08-02T16:15:07.817",
  "references": [
    {
      "source": "cve-coordination@google.com",
      "tags": [
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        "Patch",
        "Third Party Advisory"
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      "url": "https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a"
    },
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      "tags": [
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        "Patch",
        "Third Party Advisory"
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      "url": "https://github.com/google/asylo/commit/90d7619e9dd99bcdb6cd28c7649d741d254d9a1a"
    }
  ],
  "sourceIdentifier": "cve-coordination@google.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-126"
        }
      ],
      "source": "cve-coordination@google.com",
      "type": "Secondary"
    },
    {
      "description": [
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          "lang": "en",
          "value": "CWE-125"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.