CVE-2019-7167

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Summary

CVECVE-2019-7167
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-03-27 02:29:00 UTC
Updated2020-08-24 17:37:00 UTC
DescriptionZcash, 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.

Risk And Classification

Problem Types: CWE-754

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Z.cash Zcash All All All All

References

ReferenceSourceLinkTags
GitHub - JinBean/CVE-Extension: This repository is an extension of our research on cryptocurrency clones and documents existing vulnerabilities discovered in those clones MISC github.com
Zcash Counterfeiting Vulnerability Successfully Remediated - Electric Coin Company MISC z.cash Vendor Advisory
Zcash Bug Could Have Allowed 'Infinite Counterfeit' Cryptocurrency | Fortune MISC fortune.com Press/Media Coverage, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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