CVE-2022-36021

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

Published Mar 1, 2023 CVSS 3.1 · 5.5 Medium EPSS 59.8% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3361-1 redis security update
Debian DLA Debian DLA DLA-3885-1 redis security update
Ubuntu USN Ubuntu USN USN-6531-1 Redis vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
Vendors & Products Redhat
Redhat enterprise Linux
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Mar 7, 2025, 9:05 PM
Reserved
Jul 15, 2022, 11:52 PM
Status
Modified
Published
Mar 1, 2023, 4:15 PM
Modified
Jun 17, 2026, 4:52 AM
Severity
Moderate
Public date
Feb 28, 2023, 12:00 AM