GSD-2020-15107

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability.
Aliases
Aliases
CVE-2020-15107
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{
  "GSD": {
    "alias": "CVE-2020-15107",
    "description": "In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability.",
    "id": "GSD-2020-15107"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-15107"
      ],
      "details": "In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability.",
      "id": "GSD-2020-15107",
      "modified": "2023-12-13T01:21:43.635176Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2020-15107",
        "STATE": "PUBLIC",
        "TITLE": "x87 FPU operations in enclaves are vulnerable to ABI poisoning in openenclave"
      },
      "affects": {
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          "vendor_data": [
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              "product": {
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          }
        ]
      },
      "impact": {
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          "attackVector": "LOCAL",
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        "discovery": "UNKNOWN"
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,0.10.0)",
          "affected_versions": "All versions before 0.10.0",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2020-07-22",
          "description": "In openenclave, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave.",
          "fixed_versions": [
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          "identifier": "CVE-2020-15107",
          "identifiers": [
            "CVE-2020-15107",
            "GHSA-7wjx-wcwg-w999"
          ],
          "not_impacted": "All versions starting from 0.10.0",
          "package_slug": "nuget/open-enclave",
          "pubdate": "2020-07-15",
          "solution": "Upgrade to version 0.10.0 or above.",
          "title": "Covert Channel",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-15107"
          ],
          "uuid": "931e4c73-11a6-4d61-b401-bdfe32790396"
        }
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    },
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        "description": {
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              "value": "In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability."
            }
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      },
      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 1.2,
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            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:H/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 1.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
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            "attackVector": "LOCAL",
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            "confidentialityImpact": "NONE",
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          "impactScore": 4.0
        }
      },
      "lastModifiedDate": "2020-07-22T15:03Z",
      "publishedDate": "2020-07-15T22:15Z"
    }
  }
}


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