---
title: "CVE-2019-3829\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-2019-3829?format=md
keywords: index, follow
---

# CVE-2019-3829

Publication date 27 March 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-3829?format=md#impact-score)

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## Description

A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A
memory corruption (double free) vulnerability in the certificate
verification API. Any client or server application that verifies X.509
certificates with GnuTLS 3.5.8 or later is affected.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2019-3829?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gnutls26 | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not affected |
| gnutls28 | 19.04 disco | Fixed 3.6.5-2ubuntu1.1 |
| 18.10 cosmic | Fixed 3.6.4-2ubuntu1.2 |
| 18.04 LTS bionic | Fixed 3.5.18-1ubuntu1.1 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2019-3829?format=md#patch-details)

## Notes

---

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

3.5.8 or later

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| gnutls28 | * Upstream:   [d39778e](https://gitlab.com/gnutls/gnutls/commit/d39778e43d1674cb3ab3685157fd299816d535c0) * Upstream:   [372821c](https://gitlab.com/gnutls/gnutls/commit/372821c883a3d36ed3ed683844ad9d90818f6392) * Upstream:   [6b5cbc9](https://gitlab.com/gnutls/gnutls/commit/6b5cbc9ea5bdca704bdbe2f8fb551f720d634bc6) * Upstream:   [ad27713](https://gitlab.com/gnutls/gnutls/commit/ad27713bef613e6c4600a0fb83ae48c6d390ff5b) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3829)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-3829)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-3829)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-3829)

### Related Ubuntu Security Notices (USN)

+ [USN-3999-1](https://usn.ubuntu.com/USN-3999-1)
+ GnuTLS vulnerabilities
+ 30 May 2019

### Other references

* <https://lists.gnupg.org/pipermail/gnutls-help/2019-March/004497.html>
* <https://www.cve.org/CVERecord?id=CVE-2019-3829>