CVE-2022-36021 — Inefficient Algorithmic Complexity in Redis

CWE-407 — Inefficient Algorithmic ComplexityCWE-190 — Integer Overflow or Wraparound8 documents7 sources
Severity
5.5MEDIUMNVD
OSV8.8
EPSS
60.6%
top 1.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
RedisDebian RedisMsrc Cbl2 Redis 6.2.11-1 ON CBL Mariner 2.0+1 more
Timeline
PublishedMar 1
Latest updateFeb 15

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:HExploitability: 1.8 | Impact: 3.6

Affected Packages7 packages

▶NVDredis/redis6.2.0 — 6.2.11+2
▶debiandebian/redis< redis 5:7.0.9-1 (bookworm)
▶Debianredis/redis< 5:6.0.16-1+deb11u3+3
▶Ubunturedis/redis< 2:2.8.4-2ubuntu0.2+esm3+4
▶CVEListV5redis/redis>= 6.2.0, < 6.2.11, >= 7.0.0, < 7.0.9+1

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
OSV
redis vulnerabilities↗2023-12-05
▶
OSV
CVE-2022-36021: Redis is an in-memory database that persists on disk↗2023-03-01
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📋Vendor Advisories

5
CISA ICS
Siemens SCALANCE XCM-/XRM-300↗2024-02-15
▶
Ubuntu
Redis vulnerabilities↗2023-12-05
▶
Microsoft
Redis string pattern matching can be abused to achieve Denial of Service↗2023-03-14
▶
Red Hat
redis: Specially crafted SRANDMEMBER, ZRANDMEMBER, and HRANDFIELD commands can trigger an integer overflow↗2023-02-28
▶
Debian
CVE-2022-36021: redis - Redis is an in-memory database that persists on disk. Authenticated users can us...↗2022
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