---
title: CVE-2022-0543
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-0543
---

# CVE-2022-0543

Publication date 18 February 2022

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**10.0 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2022-0543#impact-score)

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## Description

It was discovered, that redis, a persistent key-value database, due to a
packaging issue, is prone to a (Debian-specific) Lua sandbox escape, which
could result in remote code execution.

### From the Ubuntu Security Team

Reginaldo Silva discovered that due to a packaging issue, a remote attacker
with the ability to execute arbitrary Lua scriptss could possibly escape
the Lua sandbox and execute arbitrary code on the host.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| redis | 21.10 impish | Fixed 5:6.0.15-1ubuntu0.1 |
| 20.04 LTS focal | Fixed 5:5.0.7-2ubuntu0.1 |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

10.0 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Changed |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 10.0 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0543)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-0543)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-0543)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-0543)

### Related Ubuntu Security Notices (USN)

+ [USN-5316-1](https://usn.ubuntu.com/USN-5316-1)
+ Redis vulnerability
+ 8 March 2022

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2022-0543>
* <https://www.cisa.gov/known-exploited-vulnerabilities-catalog>