GHSA-773q-5334-5gf9: Memory over-allocation in evm-core

August 25, 2021

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.

The flaw was corrected in commit 19ade85.

References

github.com/advisories/GHSA-773q-5334-5gf9
github.com/rust-blockchain/evm
github.com/rust-blockchain/evm/commit/19ade85
rustsec.org/advisories/RUSTSEC-2021-0066.html

Code Behaviors & Features

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