Vulnerability-Lookup

GHSA-Q567-C5XF-8XJF

Vulnerability from github – Published: 2022-05-13 01:22 – Updated: 2022-05-13 01:22

Details

Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2019-7167"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-27T02:29:00Z",
    "severity": "HIGH"
  },
  "details": "Zcash, before the Sapling network upgrade (2018-10-28), had a counterfeiting vulnerability. A key-generation process, during evaluation of polynomials related to a to-be-proven statement, produced certain bypass elements. Availability of these elements allowed a cheating prover to bypass a consistency check, and consequently transform the proof of one statement into an ostensibly valid proof of a different statement, thereby breaking the soundness of the proof system. This misled the original Sprout zk-SNARK verifier into accepting the correctness of a transaction.",
  "id": "GHSA-q567-c5xf-8xjf",
  "modified": "2022-05-13T01:22:47Z",
  "published": "2022-05-13T01:22:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7167"
    },
    {
      "type": "WEB",
      "url": "https://github.com/JinBean/CVE-Extension"
    },
    {
      "type": "WEB",
      "url": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated"
    },
    {
      "type": "WEB",
      "url": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-7167 (GCVE-0-2019-7167)

Vulnerability from cvelistv5 – Published: 2019-03-27 01:37 – Updated: 2024-08-04 20:38

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

3 references

URL	Tags
http://fortune.com/2019/02/05/zcash-vulnerability…	x_refsource_MISC
https://z.cash/blog/zcash-counterfeiting-vulnerab…	x_refsource_MISC
https://github.com/JinBean/CVE-Extension	x_refsource_MISC

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          "dateUpdated": "2024-08-04T20:38:33.429Z",
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            "tags": [
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              "x_transferred"
            ],
            "url": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/"
          },
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              "x_transferred"
            ],
            "url": "https://github.com/JinBean/CVE-Extension"
          }
        ],
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            },
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-Q567-C5XF-8XJF

CVE-2019-7167 (GCVE-0-2019-7167)

Tags

Sightings

Nomenclature