CVE-2021-25836

Public Exploit

Description

Cosmos Network Ethermint <= v0.4.0 is affected by cache lifecycle inconsistency in the EVM module. The bytecode set in a FAILED transaction wrongfully remains in memory(stateObject.code) and is further written to persistent store at the Endblock stage, which may be utilized to build honeypot contracts.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.24%

Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/cosmos/ethermint/issues/667#issuecomment-759284303	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-25836?: CVE-2021-25836 has been scored as a high severity vulnerability.
How to fix CVE-2021-25836?: To fix CVE-2021-25836, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25836 being actively exploited in the wild?: It is possible that CVE-2021-25836 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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