CVE-2021-43839

HIGH7.5EPSS 0.29%

Drainage of FeeCollector's Block Transaction Fees in cronos

發布日:2022/1/6修改日:2026/3/13

描述

### Impact In Cronos nodes running versions before v0.6.5, it is possible to take transaction fees from Cosmos SDK's FeeCollector for the current block by sending a custom crafted MsgEthereumTx. User funds and balances are safe. ### Patches This problem has been patched in Cronos v0.6.5 on the mempool level. The next network upgrade with consensus-breaking changes will patch it on the consensus level. ### Workarounds There are no tested workarounds. All validator node operators are recommended to upgrade to Cronos v0.6.5 at their earliest possible convenience. ### Credits Thank you to @zb3 for reporting this issue on [Cronos Immunefi Bug Bounty Program](https://immunefi.com/bounty/cronos/), to @cyril-crypto for reproducing the issue and to @yihuang and @thomas-nguy for patching the issue on the CheckTx (mempool) and the DeliverTx (consensus) levels. ### For more information If you have any questions or comments about this advisory: * Open a discussion in [crypto-org-chain/cronos](https://github.com/crypto-org-chain/cronos/discussions/new) * Email us at [[email protected]](mailto:[email protected])

受影響套件(3)

Go/github.com/crypto-org-chain/cronosfrom 0, < 0.6.5
Go/github.com/tharsis/ethermint>= 0.8.0, < 0.10.0
Go/github.com/tharsis/evmosfrom 0, <= 0.4.2

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

描述

受影響套件(3)

CVSS 分數

參考連結(5)