Memory over-allocation in evm-core · GHSA-773q-5334-5gf9 · GitHub Advisory Database · GitHub

Memory over-allocation in evm-core

Moderate severity GitHub Reviewed Published Aug 25, 2021 to the GitHub Advisory Database • Updated Jun 13, 2023

Package

evm-core (Rust)

Affected versions

>= 0.26.0, < 0.26.1

>= 0.25.0, < 0.25.1

>= 0.24.0, < 0.24.1

>= 0.23.0, < 0.23.1

< 0.21.1

Patched versions

0.26.1

0.25.1

0.24.1

0.23.1

0.21.1

Description

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

Reviewed Aug 18, 2021

Published to the GitHub Advisory Database Aug 25, 2021

Last updated Jun 13, 2023