CVE-2024-21629
January 02, 2024
Rust EVM is an Ethereum Virtual Machine interpreter. In "rust-evm", a feature called "record_external_operation" was introduced, allowing library users to record custom gas changes. This feature can have some bogus interactions with the call stack. In particular, during finalization of a "CREATE" or "CREATE2", in the case that the substack execution happens successfully, "rust-evm" will first commit the substate, and then call "record_external_operation(Write(out_code.len()))". If "record_external_operation" later fails, this error is returned to the parent call stack, instead of "Succeeded". Yet, the substate commitment already happened. This causes smart contracts able to commit state changes, when the parent caller contract receives zero address (which usually indicates that the execution has failed). This issue only impacts library users with custom "record_external_operation" that returns errors. The issue is patched in release 0.41.1. No known workarounds are available.
Additional Notes
The description of this vulnerability differs from MITRE.
Related ResourcesĀ (6)
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Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Check or Handling of Exceptional Conditions
EPSS
Base Score:
0.64