CVE-2022-21685
This will cause a node crash for debug builds.
Does this matter?
Lower severity and a low EPSS score (1.33%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.33% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-191
- Affected
- parity/frontier
- Source
- security-advisories@github.com
References
- https://github.com/paritytech/frontier/commit/8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664Patch, Third Party Advisory
- https://github.com/paritytech/frontier/pull/549Patch, Third Party Advisory
- https://github.com/paritytech/frontier/security/advisories/GHSA-cjg2-2fjg-fph4Patch, Third Party Advisory
- https://github.com/paritytech/frontier/commit/8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664Patch, Third Party Advisory
- https://github.com/paritytech/frontier/pull/549Patch, Third Party Advisory
- https://github.com/paritytech/frontier/security/advisories/GHSA-cjg2-2fjg-fph4Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.