CVE Vulnerability

CVE-2022-39242

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.

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/paritytech/frontier/pull/851 Patch Third Party Advisory
https://github.com/paritytech/frontier/security/advisories/GHSA-v57h-6hmh-g2p4 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:parity:frontier:*:*:*:*:*:*:*:*
Information

Published : 2022-09-24 02:15

Updated : 2022-09-29 02:54

NVD link : CVE-2022-39242

Mitre link : CVE-2022-39242

Products Affected
No products.
CWE
CWE-682