CVE Vulnerability

CVE-2021-29511

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd Patch Third Party Advisory
https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388 Patch Third Party Advisory
https://crates.io/crates/evm Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:evm_project:evm:0.22.0:*:*:*:*:rust:*:*
cpe:2.3:a:evm_project:evm:0.23.0:*:*:*:*:rust:*:*
cpe:2.3:a:evm_project:evm:0.24.0:*:*:*:*:rust:*:*
cpe:2.3:a:evm_project:evm:0.25.0:*:*:*:*:rust:*:*
cpe:2.3:a:evm_project:evm:0.26.0:*:*:*:*:rust:*:*
cpe:2.3:a:evm_project:evm:*:*:*:*:*:rust:*:*
Information

Published : 2021-05-12 06:15

Updated : 2022-10-25 07:13

NVD link : CVE-2021-29511

Mitre link : CVE-2021-29511

Products Affected
No products.
CWE
CWE-787