TI-2022-18619 Aliases CVE-2022-39242 GHSA-v57h-6hmh-g2p4

Incorrect Calculation in Frontier leads to inflated Ethereum chain gas prices

LOW 31CWE-682Published 2022-09-24 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0076 55th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
paritytech	frontier	< commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658	—	No fix listed	CNA
—	pallet-ethereum (crates.io)	up to 3.0.0	—	No fix listed	GHSA-v57h-6hmh-g2p4

frontier Vendorparitytech Affected < commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658 Fixed in — No fix listed CNA
pallet-ethereum (crates.io) Vendor— Affected up to 3.0.0 Fixed in — No fix listed GHSA-v57h-6hmh-g2p4

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:parity:frontier::::::::	before 2022-09-12	Vulnerable	paritytech

cpe:2.3:a:parity:frontier:*:*:*:*:*:*:*:* Versions before 2022-09-12 Vulnerable ·paritytech

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-39242
2026-10-03 Alias added: GHSA-v57h-6hmh-g2p4

References

Patch 1

https://github.com/paritytech/frontier/pull/851

Advisory 2

Other 1

https://github.com/paritytech/frontier

TI-2023-24151 Frontier opcode SUICIDE touches too many storage values on large contracts CVSS 3.1HIGH 7.5
TI-2023-12975 Frontier's modexp precompile is slow for even modulus CVSS 3.1HIGH 7.5
TI-2022-16433 Message length overflow in frontier CVSS 3.1HIGH 7.1
TI-2022-13155 Discrepency in transfer value and actual value due to incorrect truncation in Frontier CVSS 3.1MEDIUM 5.3
TI-2022-06061 Integer underflow in Frontier CVSS 3.1MEDIUM 6.5
TI-2021-17977 Validity check for signed Frontier-specific extrinsic not called in block execution CVSS 3.1MEDIUM 5.3

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences