{ "containers": { "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2019-06-11T20:24:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/" }, { "tags": [ "x_refsource_MISC" ], "url": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/JinBean/CVE-Extension" } ], "source": { "discovery": "INTERNAL" }, "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-7167", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/", "refsource": "MISC", "url": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/" }, { "name": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/", "refsource": "MISC", "url": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/" }, { "name": "https://github.com/JinBean/CVE-Extension", "refsource": "MISC", "url": "https://github.com/JinBean/CVE-Extension" } ] }, "source": { "discovery": "INTERNAL" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T20:38:33.429Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "http://fortune.com/2019/02/05/zcash-vulnerability-cryptocurrency/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/JinBean/CVE-Extension" } ] } ] }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-7167", "datePublished": "2019-03-27T01:37:40.000Z", "dateReserved": "2019-01-29T00:00:00.000Z", "dateUpdated": "2024-08-04T20:38:33.429Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }