#VU62692 NULL pointer dereference in Redis - CVE-2022-24736

Vulnerability identifier: #VU62692

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-24736

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Redis
Server applications / Database software

Vendor: Salvatore Sanfilippo

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can use a specially crafted Lua script and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Redis: 6.2.0 - 7.0 rc3

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External links
https://github.com/redis/redis/pull/10651
https://github.com/redis/redis/security/advisories/GHSA-3qpw-7686-5984
https://github.com/redis/redis/releases/tag/7.0.0
https://github.com/redis/redis/releases/tag/6.2.7

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.