What is GHSA-hhc4-47rh-cr34?

GHSA-hhc4-47rh-cr34 is a security advisory published by GitHub Security Advisories with Medium severity. Incorrect is_static parameter for custom stateful precompiles in SputnikVM (evm)

Which CVE IDs does GHSA-hhc4-47rh-cr34 cover?

GHSA-hhc4-47rh-cr34 covers the following CVE IDs: CVE-2022-39354. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hhc4-47rh-cr34?

GHSA-hhc4-47rh-cr34 has a CVSS v3 base score of 5.9, published by GitHub Security Advisories.

Which products are affected by GHSA-hhc4-47rh-cr34?

GHSA-hhc4-47rh-cr34 affects 1 product, including: rust/evm:\u003c= 0.35.0.

GHSA-hhc4-47rh-cr34MediumCVSS 5.9

Incorrect is_static parameter for custom stateful precompiles in SputnikVM (evm)

Vendor

GitHub Security Advisories

Published

October 25, 2022

Last Modified

February 2, 2023

🔗 CVE IDs covered (1)

CVE-2022-39354 →

📋 Description

Impact

A custom stateful precompile can use the is_static parameter to determine if the call is executed in a static context (via STATICCALL), and thus decide if stateful operations should be done. Previously, the passed is_static parameter was incorrect -- it was only set to true if the call comes from a direct STATICCALL opcode. However, once a static call context is entered, it should stay static.

The issue only impacts custom precompiles that actually uses is_static. The maintainers estimate the usage is low. However, for those affected, it can lead to possible incorrect state transitions.

Patches

PR: https://github.com/rust-blockchain/evm/pull/133 Released in v0.36.0.

Older patch versions can be released on request if anyone needs them. Simply contact @sorpaas by email to request it.

For more information

If you have any questions or comments about this advisory:

Open an issue in evm repo
Email Wei at [email protected]

🎯 Affected products1

rust/evm:<= 0.35.0