GSD-2019-16214

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \r character.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2019-16214",
    "description": "Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \\r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \\r character.",
    "id": "GSD-2019-16214"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-16214"
      ],
      "details": "Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \\r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \\r character.",
      "id": "GSD-2019-16214",
      "modified": "2023-12-13T01:23:40.772955Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2019-16214",
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      "description": {
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            "lang": "eng",
            "value": "Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \\r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \\r character."
          }
        ]
      },
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                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://blog.openzeppelin.com/libra-vulnerability-summary/",
            "refsource": "MISC",
            "url": "https://blog.openzeppelin.com/libra-vulnerability-summary/"
          },
          {
            "name": "https://blog.openzeppelin.com/libra-vulnerability-release/",
            "refsource": "MISC",
            "url": "https://blog.openzeppelin.com/libra-vulnerability-release/"
          },
          {
            "name": "https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19e",
            "refsource": "MISC",
            "url": "https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19e"
          }
        ]
      }
    },
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            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:libra:libra_core:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2019-09-03",
                "vulnerable": true
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        "description": {
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              "value": "Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \\r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \\r character."
            }
          ]
        },
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            {
              "name": "https://blog.openzeppelin.com/libra-vulnerability-summary/",
              "refsource": "MISC",
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            {
              "name": "https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19e",
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.1,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-08-24T17:37Z",
      "publishedDate": "2019-09-11T04:15Z"
    }
  }
}



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