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CVE-2022-36021

Date: March 1, 2023

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.

Language: C

Severity Score

Related Resources (6)

https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84
https://nvd.nist.gov/vuln/detail/CVE-2022-36021
https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv
https://security-tracker.debian.org/tracker/CVE-2022-36021
https://access.redhat.com/security/cve/CVE-2022-36021
https://www.mend.io/vulnerability-database/CVE-2022-36021

Severity Score

Weakness Type (CWE)

Inefficient Algorithmic Complexity

CWE-407

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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