Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-29511 First vendor Publication 2021-05-12
Vendor Cve Last vendor Modification 2022-10-25

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29511

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6

Sources (Detail)

Source Url
CONFIRM https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388
MISC https://crates.io/crates/evm
https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9...

Alert History

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Date Informations
2022-10-26 00:27:44
  • Multiple Updates
2021-10-23 01:46:40
  • Multiple Updates
2021-05-22 00:22:53
  • Multiple Updates
2021-05-19 12:39:15
  • Multiple Updates
2021-05-19 12:39:03
  • Multiple Updates
2021-05-19 01:39:18
  • Multiple Updates
2021-05-19 01:39:06
  • Multiple Updates
2021-05-18 17:22:49
  • Multiple Updates
2021-05-18 05:22:49
  • Multiple Updates
2021-05-13 00:22:45
  • First insertion