gsd-2019-14859
Vulnerability from gsd
Modified
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


To clipboard 

{
  "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"
    }
  },
  "namespaces": {
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        "ID": "CVE-2019-14859",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
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                  {
                    "product_name": "python-ecdsa",
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                          "version_value": "all python-ecdsa versions before 0.13.3"
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          }
        ]
      },
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                "value": "CWE-347"
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      },
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          {
            "name": "https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3",
            "refsource": "MISC",
            "url": "https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3"
          },
          {
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            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859"
          },
          {
            "name": "https://pypi.org/project/ecdsa/0.13.3/",
            "refsource": "MISC",
            "url": "https://pypi.org/project/ecdsa/0.13.3/"
          },
          {
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            "refsource": "MISC",
            "url": "https://github.com/warner/python-ecdsa/issues/114"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.13.3",
          "affected_versions": "All versions before 0.13.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "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": [
            "0.13.3"
          ],
          "identifier": "CVE-2019-14859",
          "identifiers": [
            "GHSA-8qxj-f9rh-9fg2",
            "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",
          "urls": [
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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",
            "https://pypi.org/project/ecdsa/0.13.3/",
            "https://github.com/advisories/GHSA-8qxj-f9rh-9fg2"
          ],
          "uuid": "c8ba45d8-b424-41f8-8c96-8a918708090b"
        }
      ]
    },
    "nvd.nist.gov": {
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                "cpe23Uri": "cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:*",
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          {
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      },
      "cve": {
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          "ID": "CVE-2019-14859"
        },
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        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859",
              "refsource": "CONFIRM",
              "tags": [
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                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14859"
            },
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2021-08-04T17:15Z",
      "publishedDate": "2020-01-02T15:15Z"
    }
  }
}


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