CVE-2018-18920
Summary
| CVE | CVE-2018-18920 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-11-12 02:29:00 UTC |
| Updated | 2019-02-04 13:31:00 UTC |
| Description | 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." |
Risk And Classification
Problem Types: CWE-119
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| JavaScript is not available. | MISC | twitter.com | Third Party Advisory |
| vbuterin comments on Netta labs claim to have found a vulnerability in EVM, what are your thoughts? | MISC | www.reddit.com | Third Party Advisory |
| Invalid values like 100, 0 occurs in Stack during the execution. · Issue #1448 · ethereum/py-evm · GitHub | MISC | github.com | Exploit, Third Party Advisory |
| Alex.eth na Twitterze: "@VitalikButerin just commented on this via reddit: https://t.co/EoKMDdykzq… " | MISC | twitter.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 980839 Python (pip) Security Update for py-evm (GHSA-vqgp-4jgj-5j64)