medium
5.5
CWE
476
Advisory Published
Updated

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

First published: Wed Apr 27 2022(Updated: )

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.

Credit: security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
Redis<6.2.7
Redis=7.0-rc1
Redis=7.0-rc2
Redis=7.0-rc3
Fedora=34
Fedora=35
Fedora=36
netapp management services for element software
NetApp Management Services for NetApp HCI
Oracle Communications Operations Monitor=4.3
Oracle Communications Operations Monitor=4.4
Oracle Communications Operations Monitor=5.0

Remedy

https://github.com/redis/redis/security/advisories/GHSA-3qpw-7686-5984

Remedy

https://www.oracle.com/security-alerts/cpujul2022.html

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Reference Links

Frequently Asked Questions

  • What is CVE-2022-24736?

    CVE-2022-24736 is a vulnerability in Redis versions prior to 6.2.7 and 7.0.0 that allows an attacker to crash the redis-server process by loading a specially crafted Lua script.

  • How severe is CVE-2022-24736?

    CVE-2022-24736 has a severity rating of 5.5 (medium).

  • How can I fix CVE-2022-24736?

    To fix CVE-2022-24736, you must upgrade Redis to version 6.2.7 or 7.0.0.

  • What software is affected by CVE-2022-24736?

    Redis versions prior to 6.2.7 and 7.0.0 are affected by CVE-2022-24736.

  • Where can I find more information about CVE-2022-24736?

    You can find more information about CVE-2022-24736 in the following references: [Reference 1](https://github.com/redis/redis/pull/10651), [Reference 2](https://github.com/redis/redis/releases/tag/6.2.7), [Reference 3](https://github.com/redis/redis/releases/tag/7.0.0).

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