CVE-2019-7167

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.
Configurations

Configuration 1

cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:*

Information

Published : 2019-03-27 02:29

Updated : 2020-08-24 05:37


NVD link : CVE-2019-7167

Mitre link : CVE-2019-7167

Products Affected
No products.
CWE