CVE-2018-18920
Py-EVM v0.2.0-alpha.33 allows attackers to make a vm.execute_bytecode call that triggers computation._stack.values with '"stack": [100, 100, 0]' where b'\x' was expected, resulting in an execution failure because of an invalid opcode. This is reportedly related to "smart contracts can be executed indefinitely without gas being paid."
- Score
- CVSS 3.0 8.8 High
- Status
- Modified - cve@mitre.org
- Published
- 2018-11-12
- Last modified
- 2024-08-05
- Weaknesses
- CWE-119
Affected products
References
- https://github.com/ethereum/py-evm/issues/1448
- https://twitter.com/AlexanderFisher/status/1060923428641878019
- https://twitter.com/NettaLab/status/1060889400102383617
- https://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx/
