GSD-2019-14859

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
Aliases
Aliases
CVE-2019-14859
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{
  "GSD": {
    "alias": "CVE-2019-14859",
    "description": "A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.",
    "id": "GSD-2019-14859",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-14859.html",
      "https://www.debian.org/security/2019/dsa-4588",
      "https://access.redhat.com/errata/RHSA-2021:4702",
      "https://ubuntu.com/security/CVE-2019-14859",
      "https://advisories.mageia.org/CVE-2019-14859.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-14859"
      ],
      "details": "A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.",
      "id": "GSD-2019-14859",
      "modified": "2023-12-13T01:23:53.242084Z",
      "schema_version": "1.4.0"
    }
  },
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          {
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    },
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          "affected_range": "\u003c0.13.3",
          "affected_versions": "All versions before 0.13.3",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-347",
            "CWE-707",
            "CWE-937"
          ],
          "date": "2021-08-31",
          "description": "A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.",
          "fixed_versions": [
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          "identifier": "CVE-2019-14859",
          "identifiers": [
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            "CVE-2019-14859"
          ],
          "not_impacted": "All versions starting from 0.13.3",
          "package_slug": "pypi/ecdsa",
          "pubdate": "2020-04-01",
          "solution": "Upgrade to version 0.13.3 or above.",
          "title": "Improper Verification of Cryptographic Signature",
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            "https://github.com/warner/python-ecdsa/issues/114",
            "https://github.com/warner/python-ecdsa/pull/115",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859",
            "https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3",
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            "https://github.com/advisories/GHSA-8qxj-f9rh-9fg2"
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            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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      },
      "lastModifiedDate": "2021-08-04T17:15Z",
      "publishedDate": "2020-01-02T15:15Z"
    }
  }
}



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