Vulnerability identifier: #VU75177

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-2023-28856

CWE-ID: CWE-20

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 insufficient validation of user-supplied input. A remote user can use the HINCRBYFLOAT command to create an invalid hash field that will crash Redis on access.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Redis: 7.0.0 - 7.0.10, 6.2.0 - 6.2.11, 6.0.0 - 6.0.18

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External links
http://github.com/redis/redis/releases/tag/6.0.19
http://github.com/redis/redis/releases/tag/6.2.12
http://github.com/redis/redis/releases/tag/7.0.11
http://github.com/redis/redis/security/advisories/GHSA-hjv8-vjf6-wcr6

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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.