CVE-2023-42448
Summary
| CVE | CVE-2023-42448 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-10-04 19:15:00 UTC |
| Updated | 2023-10-10 13:07:00 UTC |
| Description | Hydra is the layer-two scalability solution for Cardano. Prior to version 0.13.0, the specification states that the contestation period in the datum of the UTxO at the head validator must stay unchanged as the state progresses from Open to Closed (Close transaction), but no such check appears to be performed in the `checkClose` function of the head validator. This would allow a malicious participant to modify the contestation deadline of the head to either allow them to fanout the head without giving another participant the chance to contest, or prevent any participant from ever redistributing the funds locked in the head via a fan-out. Version 0.13.0 contains a patch for this issue. |
Risk And Classification
Problem Types: CWE-1284
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Cont... | MISC | github.com | |
| Ensure close transaction does not change contestation period · input-output-hk/hydra@2f45529 · GitHub | MISC | github.com | |
| github.com/input-output-hk/hydra/blob/master/hydra-plutus/src/Hydra/Cont... | MISC | github.com | |
| Changelog | MISC | github.com | |
| Contestation period in head datum can be modified during Close transaction, allowing malicious participant to freely modify the contestation deadline · Advisory · input-output-hk/hydra · GitHub | MISC | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.