CVE-2022-36021

2023-03-0100:00:00

ubuntu.com

redis

denial-of-service

fix

versions

6.0.18

6.2.11

7.0.9

in-memory database

disk persistence

authenticated users

string matching commands

scan

keys

cpu time

vulnerability

cve-2022-36021

unix

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

9.0%

JSON

Redis is an in-memory database that persists on disk. Authenticated users
can use string matching commands (like SCAN or KEYS) with a specially
crafted pattern to trigger a denial-of-service attack on Redis, causing it
to hang and consume 100% CPU time. The problem is fixed in Redis versions
6.0.18, 6.2.11, 7.0.9.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchredis< 5:4.0.9-1ubuntu0.2+esm4UNKNOWN
ubuntu20.04noarchredis< 5:5.0.7-2ubuntu0.1+esm2UNKNOWN
ubuntu22.04noarchredis< 5:6.0.16-1ubuntu1+esm1UNKNOWN
ubuntu14.04noarchredis< 2:2.8.4-2ubuntu0.2+esm3UNKNOWN
ubuntu16.04noarchredis< 2:3.0.6-1ubuntu0.4+esm2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	redis	< 5:4.0.9-1ubuntu0.2+esm4	UNKNOWN
ubuntu	20.04	noarch	redis	< 5:5.0.7-2ubuntu0.1+esm2	UNKNOWN
ubuntu	22.04	noarch	redis	< 5:6.0.16-1ubuntu1+esm1	UNKNOWN
ubuntu	14.04	noarch	redis	< 2:2.8.4-2ubuntu0.2+esm3	UNKNOWN
ubuntu	16.04	noarch	redis	< 2:3.0.6-1ubuntu0.4+esm2	UNKNOWN