babylonlabs-io/babylon · Security
Babylon Integer Overflow in Distribution Module CumulativeRewardRatio Calculation Leading to Chain Halt
- GHSA ID
- GHSA-869w-47c6-fq8q
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
Summary
Minting large amount of tokens through ibc transfer and then depositing them in validator rewards pool (via DepositValidatorRewardsPool message) can lead to integer overflow panic when calculating cumulative_reward_ratio for the validator.
This calculation happens in x/epoching module EndBlocker, thus the panic will halt the chain.
Impact
Denial of Service - Due to panic in the EndBlocker Babylon Genesis will halt
CWEs
- CWE-190 · Integer Overflow or Wraparound
- CWE-770 · Allocation of Resources Without Limits or Throttling