CVE-2023-42806

CVSS V2 None CVSS V3 None
Description
Hydra is the layer-two scalability solution for Cardano. Prior to version 0.13.0, not signing and verifying `$\mathsf{cid}$` allows an attacker (which must be a participant of this head) to use a snapshot from an old head instance with the same participants to close the head or contest the state with it. This can lead to an incorrect distribution of value (= value extraction attack; hard, but possible) or prevent the head to finalize because the value available is not consistent with the closed utxo state (= denial of service; easy). A patch is planned for version 0.13.0. As a workaround, rotate keys between heads so not to re-use keys and not result in the same multi-signature participants.
Overview
  • CVE ID
  • CVE-2023-42806
  • Assigner
  • GitHub_M
  • Vulnerability Status
  • PUBLISHED
  • Published Version
  • 2023-09-21T16:45:34.742Z
  • Last Modified Date
  • 2023-09-21T16:45:34.742Z
Weakness Enumerations
CWE URL
CWE-347 http://cwe.mitre.org/data/definitions/347.html
References
Reference URL Reference Tags
https://github.com/input-output-hk/hydra/security/advisories/GHSA-gr36-mc6v-72qq x_refsource_CONFIRM
https://github.com/input-output-hk/hydra/blob/ec6c7a2ab651462228475d0b34264e9a182c22bb/hydra-node/src/Hydra/HeadLogic.hs#L357 x_refsource_MISC
https://github.com/input-output-hk/hydra/blob/ec6c7a2ab651462228475d0b34264e9a182c22bb/hydra-node/src/Hydra/Snapshot.hs#L50-L54 x_refsource_MISC
https://github.com/input-output-hk/hydra/blob/ec6c7a2ab651462228475d0b34264e9a182c22bb/hydra-plutus/src/Hydra/Contract/Head.hs#L583-L599 x_refsource_MISC
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2023-42806
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42806
History
Created Old Value New Value Data Type Notes
2024-06-25 14:03:01 Added to TrackCVE