CVE-2021-29511
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Memory over-allocation in evm crate
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
evm
- Vendor
- rust-blockchain
- Product
- evm
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 0.21.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 0.22.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 0.23.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 0.24.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| = 0.25.0 | affected | Unavailable | Unavailable | Unavailable | None listed |