Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1jamcyLTJmamctZnBoNM0jVQ

Integer underflow in Frontier

Impact

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. It is recommended that you apply the patch as soon as possible.

If you do not use MODEXP precompile in your runtime, then you are not impacted.

Patches

Patches are applied in PR #549.

Workarounds

None.

References

Patch PR: #549

Credits

Thanks to SR-Labs for discovering the security vulnerability, and thanks to PureStake team for the patches.

For more information

If you have any questions or comments about this advisory:

• Open an issue in the Frontier repo

Permalink: https://github.com/advisories/GHSA-cjg2-2fjg-fph4
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jamcyLTJmamctZnBoNM0jVQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: over 1 year ago

Identifiers: GHSA-cjg2-2fjg-fph4, CVE-2022-21685
References:

• https://github.com/paritytech/frontier/security/advisories/GHSA-cjg2-2fjg-fph4
• https://nvd.nist.gov/vuln/detail/CVE-2022-21685
• https://github.com/paritytech/frontier/pull/549
• https://github.com/paritytech/frontier/commit/8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664
• https://github.com/advisories/GHSA-cjg2-2fjg-fph4

Repository: https://github.com/paritytech/frontier
Blast Radius: 1.0

Affected Packages