CVE-2021-29511
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| rust-blockchain | evm | < 0.21.1 | affected |
| rust-blockchain | evm | = 0.22.0 | affected |
| rust-blockchain | evm | = 0.23.0 | affected |
| rust-blockchain | evm | = 0.24.0 | affected |
| rust-blockchain | evm | = 0.25.0 | affected |
Weaknesses
- CWE-770: {"CWE-770":"Allocation of Resources Without Limits or Throttling"}
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388
- https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
- https://crates.io/crates/evm
References
- https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388
- https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
- https://crates.io/crates/evm
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