CVE-2022-39242

 

Published at: - 24-09-2022 04:15

Last modified: - 24-09-2022 04:47

Total changes: - 1

Description

Frontier is an Ethereum compatibility layer for Substrate. Prior to commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658, the worst case weight was always accounted as the block weight for all cases. In case of large EVM gas refunds, this can lead to block spamming attacks -- the adversary can construct blocks with transactions that have large amount of refunds or unused gases with reverts, and as a result inflate up the chain gas prices. The impact of this issue is limited in that the spamming attack would still be costly for any adversary, and it has no ability to alter any chain state. This issue has been patched in commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658. There are no known workarounds.

Common Vulnerability Scoring System (CVSS)

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Verification logic

 

Reference

• https://github.com/paritytech/frontier/pull/851
• https://github.com/paritytech/frontier/security/advisories/GHSA-v57h-6hmh-g2p4

 

Keywords

NVD

 

CVE-2022-39242

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures