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I. Basic Information for CVE-2021-29511
Vulnerability Information

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Vulnerability Title
Memory over-allocation in evm crate
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rust 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rust是Mozilla基金会的一款通用、编译型编程语言。 Rust 存在安全漏洞。攻击者可通过该漏洞使程序拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
rust-blockchainevm < 0.21.1 -
II. Public POCs for CVE-2021-29511
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III. Intelligence Information for CVE-2021-29511
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IV. Related Vulnerabilities
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