---
title: "CVE-2019-14833\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-2019-14833?format=md
keywords: index, follow
---

# CVE-2019-14833

Publication date 29 October 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.4 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-14833?format=md#impact-score)

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## Description

A flaw was found in Samba, all versions starting samba 4.5.0 before samba
4.9.15, samba 4.10.10, samba 4.11.2, in the way it handles a user password
change or a new password for a samba user. The Samba Active Directory
Domain Controller can be configured to use a custom script to check for
password complexity. This configuration can fail to verify password
complexity when non-ASCII characters are used in the password, which could
lead to weak passwords being set for samba users, making it vulnerable to
dictionary attacks.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2019-14833?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| samba | 19.10 eoan | Fixed 2:4.10.7+dfsg-0ubuntu2.2 |
| 19.04 disco | Fixed 2:4.10.0+dfsg-0ubuntu2.6 |
| 18.04 LTS bionic | Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.13 |
| 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)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

4.5+ only

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.4 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.4 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14833)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-14833)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-14833)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-14833)

### Related Ubuntu Security Notices (USN)

+ [USN-4167-1](https://usn.ubuntu.com/USN-4167-1)
+ Samba vulnerabilities
+ 29 October 2019

### Other references

* <https://www.samba.org/samba/security/CVE-2019-14833.html>
* <https://www.cve.org/CVERecord?id=CVE-2019-14833>