CVE-2021-43839

HIGH Year: 2021
CVSS v3 Score
7.5
High
CVSS v2 Score
5.0
Medium
Weakness Type
CWE-670
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Vulnerability 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.

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