---
title: "CVE-2020-28243\n    | Ubuntu"
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-2020-28243?format=md
keywords: index, follow
---

# CVE-2020-28243

Publication date 27 February 2021

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2020-28243?format=md#impact-score)

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## Description

An issue was discovered in SaltStack Salt before 3002.5. The minion's
restartcheck is vulnerable to command injection via a crafted process name.
This allows for a local privilege escalation by any user able to create a
files on the minion in a non-blacklisted directory.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| salt | 25.10 questing | Not in release |
| 25.04 plucky | Not in release |
| 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release |
| 23.10 mantic | Not in release |
| 23.04 lunar | Not in release |
| 22.10 kinetic | Ignored end of life, was needs-triage |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Ignored end of life |
| 21.04 hirsute | Ignored end of life |
| 20.10 groovy | Ignored end of life |
| 20.04 LTS focal | Not in release |
| 18.04 LTS bionic | Fixed 2017.7.4+dfsg1-1ubuntu18.04.2+esm1  Ubuntu Pro |
| 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)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28243)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-28243)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-28243)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-28243)

### Related Ubuntu Security Notices (USN)

+ [USN-6948-1](https://usn.ubuntu.com/USN-6948-1)
+ Salt vulnerabilities
+ 8 August 2024

### Other references

* <https://saltproject.io/security_announcements/active-saltstack-cve-release-2021-feb-25/>
* <https://www.cve.org/CVERecord?id=CVE-2020-28243>