github - ghsa-v57h-6hmh-g2p4

GHSA-V57H-6HMH-G2P4

Vulnerability from github – Published: 2022-09-23 22:07 – Updated: 2024-10-24 21:55

Summary

Weight not properly refunded after EVM execution

Details

Impact

Previously, 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. This issue is fixed by properly refund unused weights after each EVM execution.

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.

Patches

The issue is fixed in https://github.com/paritytech/frontier/pull/851

Workarounds

None.

References

Are there any links users can visit to find out more?

For more information

If you have any questions or comments about this advisory: * Open an issue in Frontier repo * Email Wei

Severity ?

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "pallet-ethereum"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-39242"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-682"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-23T22:07:10Z",
    "nvd_published_at": "2022-09-24T02:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nPreviously, 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. This issue is fixed by properly refund unused weights after each EVM execution.\n\nThe 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. \n\n### Patches\n\nThe issue is fixed in https://github.com/paritytech/frontier/pull/851\n\n### Workarounds\n\nNone.\n\n### References\n_Are there any links users can visit to find out more?_\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Frontier repo](https://github.com/paritytech/frontier/issues)\n* Email [Wei](mailto:wei@that.world)\n",
  "id": "GHSA-v57h-6hmh-g2p4",
  "modified": "2024-10-24T21:55:59Z",
  "published": "2022-09-23T22:07:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/paritytech/frontier/security/advisories/GHSA-v57h-6hmh-g2p4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39242"
    },
    {
      "type": "WEB",
      "url": "https://github.com/paritytech/frontier/pull/851"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/paritytech/frontier"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Weight not properly refunded after EVM execution"
}

CVE-2022-39242 (GCVE-0-2022-39242)

Vulnerability from cvelistv5 – Published: 2022-09-24 01:25 – Updated: 2025-04-23 16:55

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.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-682 - Incorrect Calculation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/paritytech/frontier/security/a…	x_refsource_CONFIRM
	https://github.com/paritytech/frontier/pull/851	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	paritytech	frontier	Affected: < commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658

Show details on NVD website

JSON

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    ],
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-V57H-6HMH-G2P4

Impact

Patches

Workarounds

References

For more information

CVE-2022-39242 (GCVE-0-2022-39242)

Tags

Sightings

Nomenclature