Medium severity · published Mar 1, 2023
CVE-2022-36021
Redis is an in-memory database that persists on disk
5.5
CVSS
59.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)59.8% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
Redis · Redis
before 6.0.18; 6.2.0 before 6.2.11; 7.0.0 before 7.0.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-36021
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-36021
Patch
https://github.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84
Vendor Advisory
https://github.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv
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