CVE-2021-29511
May 12, 2021
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.
Affected Packages
evm (RUST):
Affected version(s) =0.22.0 <0.22.1Fix Suggestion:
Update to version 0.22.1evm-core (RUST):
Affected version(s) =0.24.0 <0.24.1Fix Suggestion:
Update to version 0.24.1evm-core (RUST):
Affected version(s) =0.26.0 <0.26.1Fix Suggestion:
Update to version 0.26.1evm (RUST):
Affected version(s) =0.22.0 <0.22.1Fix Suggestion:
Update to version 0.22.1evm-core (RUST):
Affected version(s) =0.26.0 <0.26.1Fix Suggestion:
Update to version 0.26.1evm-core (RUST):
Affected version(s) =0.25.0 <0.25.1Fix Suggestion:
Update to version 0.25.1evm-core (RUST):
Affected version(s) =0.24.0 <0.24.1Fix Suggestion:
Update to version 0.24.1evm-core (RUST):
Affected version(s) >=0.12.0 <0.21.1Fix Suggestion:
Update to version 0.21.1evm-core (RUST):
Affected version(s) =0.23.0 <0.23.1Fix Suggestion:
Update to version 0.23.1evm (RUST):
Affected version(s) =0.22.0 <0.22.1Fix Suggestion:
Update to version 0.22.1evm-core (RUST):
Affected version(s) =0.25.0 <0.25.1Fix Suggestion:
Update to version 0.25.1evm-core (RUST):
Affected version(s) =0.26.0 <0.26.1Fix Suggestion:
Update to version 0.26.1evm-core (RUST):
Affected version(s) =0.23.0 <0.23.1Fix Suggestion:
Update to version 0.23.1evm-core (RUST):
Affected version(s) =0.25.0 <0.25.1Fix Suggestion:
Update to version 0.25.1evm (RUST):
Affected version(s) =0.22.0 <0.22.1Fix Suggestion:
Update to version 0.22.1evm-core (RUST):
Affected version(s) =0.26.0 <0.26.1Fix Suggestion:
Update to version 0.26.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
CVSS v2
Base Score:
4
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Weakness Type (CWE)
EPSS
Base Score:
0.38
