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.
History

Thu, 19 Sep 2024 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-10-04T18:57:52.752Z

Updated: 2024-09-19T19:06:21.324Z

Reserved: 2023-09-08T20:57:45.573Z

Link: CVE-2023-42448

cve-icon Vulnrichment

Updated: 2024-08-02T19:23:38.532Z

cve-icon NVD

Status : Analyzed

Published: 2023-10-04T19:15:10.407

Modified: 2023-10-10T13:07:59.467

Link: CVE-2023-42448

cve-icon Redhat

No data.