CVE-2022-36021

Publication date 1 March 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
redis	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Ignored
	22.10 kinetic	Ignored
	22.04 LTS jammy	Fixed 5:6.0.16-1ubuntu1+esm1 Ubuntu Pro
	20.04 LTS focal	Fixed 5:5.0.7-2ubuntu0.1+esm2 Ubuntu Pro
	18.04 LTS bionic	Fixed 5:4.0.9-1ubuntu0.2+esm4 Ubuntu Pro
	16.04 LTS xenial	Fixed 2:3.0.6-1ubuntu0.4+esm2 Ubuntu Pro
	14.04 LTS trusty	Fixed 2:2.8.4-2ubuntu0.2+esm3 Ubuntu Pro

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
redis	Upstream: dcbfcb9

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-6531-1
Redis vulnerabilities
5 December 2023