CVE-2021-43839 Information

Description

Cronos is a commercial implementation of a blockchain. 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. This problem has been patched in Cronos v0.6.5. There are no tested workarounds. All validator node operators are recommended to upgrade to Cronos v0.6.5 at their earliest possible convenience.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://github.com/crypto-org-chain/cronos/pull/270 https://github.com/crypto-org-chain/cronos/security/advisories/GHSA-f854-hpxv-cw9r https://github.com/crypto-org-chain/cronos/commit/150ef237b37ac28c8136e1c0f494932860b9ebe8

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5