CVE-2022-39354
evm has incorrect is_static parameter for custom stateful precompiles
- State
- Published
- Severity
- 5.9 Medium
- Published
- Oct 25, 2022
- Updated
- Apr 23, 2025
- Reserved
- Sep 2, 2022
Description
SputnikVM, also called evm, is a Rust implementation of Ethereum Virtual Machine. 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. Prior to version 0.36.0, the passed `is_static` parameter was incorrect -- it was only set to `true` if the call came 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`. For those affected, the issue can lead to possible incorrect state transitions. Version 0.36.0 contains a patch. There are no known workarounds.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | GitHub_M |
Weaknesses
- CWE-670 Always-Incorrect Control Flow Implementation
Affected Products
| Product | Versions |
|---|---|
evmrust-blockchain |
|
References
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