---
title: "CVE-2019-3880\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-2019-3880?format=md
keywords: index, follow
---

# CVE-2019-3880

Publication date 8 April 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-2019-3880?format=md#impact-score)

Toggle side navigation

## Description

A flaw was found in the way samba implemented an RPC endpoint emulating the
Windows registry service API. An unprivileged attacker could use this flaw
to create a new registry hive file anywhere they have unix permissions
which could lead to creation of a new file in the Samba share. Versions
before 4.8.11, 4.9.6 and 4.10.2 are vulnerable.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| samba | 18.10 cosmic | Fixed 2:4.8.4+dfsg-2ubuntu2.3 |
| 18.04 LTS bionic | Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.9 |
| 16.04 LTS xenial | Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.19 |
| 14.04 LTS trusty | Fixed 2:4.3.11+dfsg-0ubuntu0.14.04.20 |

---

* [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**

5.4 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | Low |
  | Availability impact | Low |
* 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:N/I:L/A:L

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3880)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-3880)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-3880)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-3880)

### Related Ubuntu Security Notices (USN)

+ [USN-3939-1](https://usn.ubuntu.com/USN-3939-1)
+ Samba vulnerability
+ 8 April 2019

+ [USN-3939-2](https://usn.ubuntu.com/USN-3939-2)
+ Samba vulnerability
+ 8 April 2019

### Other references

* <https://www.samba.org/samba/security/CVE-2019-3880.html>
* <https://www.cve.org/CVERecord?id=CVE-2019-3880>