Description
evm is a pure Rust implementation of Ethereum Virtual Machine. Prior to the patch, when executing specific EVM opcodes related to memory operations that use `evm_core::Memory::copy_large`, the `evm` crate can over-allocate memory when it is not needed, making it possible for an attacker to perform denial-of-service attack. The flaw was corrected in commit `19ade85`. Users should upgrade to `==0.21.1, ==0.23.1, ==0.24.1, ==0.25.1, >=0.26.1`. There are no workarounds. Please upgrade your `evm` crate version.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388
Patch, Third Party Advisory x_refsource_misc
https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
Third Party Advisory x_refsource_misc
https://crates.io/crates/evm
Scores
CVSS v3
6.5
EPSS
0.0038
EPSS Percentile
59.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-770
CWE-787
Status
published
Products (8)
crates.io/evm
0 - 0.21.1crates.io
crates.io/evm-core
0 - 0.21.1crates.io
evm_project/evm
0.22.0
evm_project/evm
0.23.0
evm_project/evm
0.24.0
evm_project/evm
0.25.0
evm_project/evm
0.26.0
evm_project/evm
< 0.21.0
Published
May 12, 2021
Tracked Since
Feb 18, 2026