---
title: "CVE-2018-15751\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-2018-15751?format=md
keywords: index, follow
---

# CVE-2018-15751

Publication date 24 October 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2018-15751?format=md#impact-score)

Toggle side navigation

## Description

SaltStack Salt before 2017.7.8 and 2018.3.x before 2018.3.3 allow remote
attackers to bypass authentication and execute arbitrary commands via
salt-api(netapi).

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| salt | 22.04 LTS jammy | Not affected |
| 21.10 impish | Ignored end of life |
| 21.04 hirsute | Ignored end of life |
| 20.04 LTS focal | Not in release |
| 19.10 eoan | Fixed 2018.3.4~git20180207+dfsg1-1 |
| 19.04 disco | Fixed 2018.3.4~git20180207+dfsg1-1 |
| 18.10 cosmic | Ignored end of life |
| 18.04 LTS bionic | Fixed 2017.7.4+dfsg1-1ubuntu18.04.2 |
| 16.04 LTS xenial | Fixed 2015.8.8+ds-1ubuntu0.1+esm1  Ubuntu Pro |
| 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)

### Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

[Get Ubuntu Pro](https://ubuntu.com/pro)
[30-day free trial](https://ubuntu.com/pro/free-trial)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15751)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-15751)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-15751)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-15751)

### Related Ubuntu Security Notices (USN)

+ [USN-4459-1](https://usn.ubuntu.com/USN-4459-1)
+ Salt vulnerabilities
+ 13 August 2020

+ [USN-4769-1](https://usn.ubuntu.com/USN-4769-1)
+ Salt vulnerabilities
+ 15 March 2021

### Other references

* <https://docs.saltstack.com/en/2017.7/topics/releases/2017.7.8.html>
* <https://docs.saltstack.com/en/latest/topics/releases/2018.3.3.html>
* <https://groups.google.com/d/msg/salt-users/dimVF7rpphY/jn3Xv3MbBQAJ>
* <https://groups.google.com/d/msg/salt-users/L9xqcJ0UXxs/qgDj42obBQAJ>
* <https://www.cve.org/CVERecord?id=CVE-2018-15751>