Vulnerability identifier: #VU72634

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36021

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Redis
Server applications / Database software

Vendor: Redis Labs

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when matching commands (like SCAN or KEYS) with a specially crafted pattern. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Redis: 7.0.0 - 7.0.8, 6.2.0 - 6.2.10, 6.0.0 - 6.0.17

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External links
http://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv
http://github.com/redis/redis/releases/tag/6.0.18
http://github.com/redis/redis/releases/tag/7.0.9
http://github.com/redis/redis/releases/tag/6.2.11

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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