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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Evm Project | Evm | <= 0.21.0 |
Related Weaknesses (CWE)
References
- https://crates.io/crates/evmThird Party Advisory
- https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f85PatchThird Party Advisory
- https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388PatchThird Party Advisory
- https://crates.io/crates/evmThird Party Advisory
- https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f85PatchThird Party Advisory
- https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388PatchThird Party Advisory
FAQ
What is CVE-2021-29511?
CVE-2021-29511 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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` c...
How severe is CVE-2021-29511?
CVE-2021-29511 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29511?
Check the references section above for vendor advisories and patch information. Affected products include: Evm Project Evm.