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WS-2021-0105

Date: August 19, 2025

Prior to the patch, when executing specific EVM opcodes related to memory operations that use evm_core::Memory::copy_large, the crate can over-allocate memory when it is not needed, making it possible for an attacker to perform a denial-of-service attack.

Language: RUST

Severity Score

Related Resources (6)

https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
https://rustsec.org/advisories/RUSTSEC-2021-0066.html
https://github.com/rust-blockchain/evm
https://github.com/rust-blockchain/evm/commit/19ade85
https://crates.io/crates/evm-core
https://www.mend.io/vulnerability-database/WS-2021-0105

Severity Score

Weakness Type (CWE)

Code

CWE-17

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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