GitHub_MCVELIST:CVE-2021-29511CVE-2021-29511 Memory over-allocation in evm crate
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
49.3%
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.
CNA Affected
[
{
"product": "evm",
"vendor": "rust-blockchain",
"versions": [
{
"status": "affected",
"version": "< 0.21.1"
},
{
"status": "affected",
"version": "= 0.22.0"
},
{
"status": "affected",
"version": "= 0.23.0"
},
{
"status": "affected",
"version": "= 0.24.0"
},
{
"status": "affected",
"version": "= 0.25.0"
}
]
}
]Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
49.3%