// For flags

CVE-2022-36021

Redis string pattern matching can be abused to achieve Denial of Service

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-15 CVE Reserved
  • 2023-03-01 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-09-21 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-407: Inefficient Algorithmic Complexity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redis
Search vendor "Redis"
 Redis
Search vendor "Redis" for product "Redis"
 < 6.0.18
Search vendor "Redis" for product "Redis" and version " < 6.0.18"
-
Affected
Redis
Search vendor "Redis"
 Redis
Search vendor "Redis" for product "Redis"
 >= 6.2.0 < 6.2.11
Search vendor "Redis" for product "Redis" and version " >= 6.2.0 < 6.2.11"
-
Affected
Redis
Search vendor "Redis"
 Redis
Search vendor "Redis" for product "Redis"
 >= 7.0.0 < 7.0.9
Search vendor "Redis" for product "Redis" and version " >= 7.0.0 < 7.0.9"
-
Affected