Headline
GHSA-4jwq-572w-4388: Memory over-allocation in evm crate
Impact
Prior to the patch, when executing specific EVM opcodes related to memory operations that use evm_core::Memory::copy_large, the crate can over-allocate memory when it is not needed, making it possible for an attacker to perform denial-of-service attack.
Patches
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.
Workarounds
None. Please upgrade your evm crate version
References
Fix commit: https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
For more information
If you have any questions or comments about this advisory:
Impact
Prior to the patch, when executing specific EVM opcodes related to memory operations that use evm_core::Memory::copy_large, the crate can over-allocate memory when it is not needed, making it possible for an attacker to perform denial-of-service attack.
Patches
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.
Workarounds
None. Please upgrade your evm crate version
References
Fix commit: rust-ethereum/evm@19ade85
For more information
If you have any questions or comments about this advisory:
- Open an issue in evm repo
- Email Wei
References
- GHSA-4jwq-572w-4388
- https://nvd.nist.gov/vuln/detail/CVE-2021-29511
- rust-ethereum/evm@19ade85
Related news
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.