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

Quick assessment

Affected
redis redis
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Redis Labs Redis是美国Redis Labs公司的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值（Key-Value）存储数据库，并提供多种语言的API。 Redis 6.2.7 版本之前和 7.0.0 版本之前存在安全漏洞，尝试加载特制 Lua 脚本的攻击者可能会通过NULL指针取消引用来利用该漏洞导致redis-server进程崩溃。

CVSS 3.3 · Low EPSS 1.50% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-24736

Vulnerability Information
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Vulnerability Title
A Malformed Lua script can crash Redis
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Redis Labs Redis 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redis Labs Redis是美国Redis Labs公司的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值（Key-Value）存储数据库，并提供多种语言的API。 Redis 6.2.7 版本之前和 7.0.0 版本之前存在安全漏洞，尝试加载特制 Lua 脚本的攻击者可能会通过NULL指针取消引用来利用该漏洞导致redis-server进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
redis redis < 6.2.7 -

II. Public POCs for CVE-2022-24736

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III. Intelligence Information for CVE-2022-24736

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Patches & Fixes for CVE-2022-24736 (1)

Vendor Advisories for CVE-2022-24736 (3)

Mailing List Discussions for CVE-2022-24736 (3)

Other References for CVE-2022-24736 (2)

IV. Related Vulnerabilities

Same product: redis
Same vendor: redis
Same weakness: CWE-476

V. Comments for CVE-2022-24736

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