Multiple vulnerabilities in Redis

Published: 2022-04-29

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-24736 CVE-2022-24735
CWE-ID	CWE-476 CWE-94
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Redis Server applications / Database software
Vendor	Salvatore Sanfilippo

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU62692

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24736

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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

External links

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Code Injection

EUVDB-ID: #VU62693

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24735

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')