gnark is a zk-SNARK library that offers a high-level API to design circuits. Prior to version 0.9.0, for some in-circuit values, it is possible to construct two valid decomposition to bits. In addition to the canonical decomposition of `a`, for small values there exists a second decomposition for `a+r` (where `r` is the modulus the values are being reduced by). The second decomposition was possible due to overflowing the field where the values are defined. Upgrading to version 0.9.0 should fix the issue without needing to change the calls to value comparison methods.
References
Link | Resource |
---|---|
https://github.com/Consensys/gnark/commit/59a4087261a6c73f13e80d695c17b398c3d0934f | Patch |
https://github.com/Consensys/gnark/security/advisories/GHSA-498w-5j49-vqjg | Mitigation Patch Third Party Advisory |
https://github.com/zkopru-network/zkopru/issues/116 | Not Applicable |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-10-09T13:33:54.973Z
Updated: 2023-10-09T13:33:54.973Z
Reserved: 2023-09-28T17:56:32.612Z
Link: CVE-2023-44378
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-10-09T14:15:10.873
Modified: 2023-10-13T18:43:14.230
Link: CVE-2023-44378
JSON object: View
Redhat Information
No data.