FKIE_CVE-2020-8904

Vulnerability from fkie_nvd - Published: 2020-08-12 19:15 - Updated: 2024-11-21 05:39
Severity ?
6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
9.6 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Summary
An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.
References
cve-coordination@google.comhttps://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94ePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94ePatch, Third Party Advisory
Impacted products
Vendor Product Version
google asylo *
To clipboard 

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  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2E43ACF0-4DFF-4A7A-BC8B-90E067F13206",
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      "value": "An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de sobrescritura de memoria arbitraria en la memoria confiable de Asylo en versiones anteriores a 0.6.0. Como la funci\u00f3n ecall_restore presenta un fallo al comprobar el rango del puntero output_len, un atacante puede manipular el valor tmp_output_len y escribir en una ubicaci\u00f3n arbitraria en la memoria confiable (enclave). Recomendamos actualizar Asylo en las versiones 0.6. 0 o posteriores"
    }
  ],
  "id": "CVE-2020-8904",
  "lastModified": "2024-11-21T05:39:39.700",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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  "vulnStatus": "Modified",
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  • 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.
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  • 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.



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