Vulnerability in Redis
CVE-2022-36021
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 cons…
EPSS: 0.606 (98.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Redis — versions < 6.0.18, >= 6.2.0, < 6.2.11, >= 7.0.0, < 7.0.9
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv (x_refsource_CONFIRM)
- https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-36021?
- CVE-2022-36021 is a medium-severity vulnerability in Redis, classified under Inefficient Algorithmic Complexity. CVSS score: 5.5/10. Published 2023-03-01.
- How severe is CVE-2022-36021?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-36021 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.