CVE-2022-21685

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-21685
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21685.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-21685
Aliases
Published
2022-01-14T17:05:11Z
Modified
2025-10-21T02:36:22Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Integer underflow in Frontier
Details

Frontier is Substrate's Ethereum compatibility layer. Prior to commit number 8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664, a bug in Frontier's MODEXP precompile implementation can cause an integer underflow in certain conditions. This will cause a node crash for debug builds. For release builds (and production WebAssembly binaries), the impact is limited as it can only cause a normal EVM out-of-gas. Users who do not use MODEXP precompile in their runtime are not impacted. A patch is available in pull request #549.

References

Affected packages

Git /

Affected ranges

Database specific

unresolved_versions

[
    {
        "type": "",
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "8a93fdc"
            }
        ]
    }
]