---
title: "CVE-2019-14664\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-2019-14664?format=md
keywords: index, follow
---

# CVE-2019-14664

Publication date 5 August 2019

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**6.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-14664?format=md#impact-score)

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## Description

In Enigmail below 2.1, an attacker in possession of PGP encrypted emails
can wrap them as sub-parts within a crafted multipart email. The encrypted
part(s) can further be hidden using HTML/CSS or ASCII newline characters.
This modified multipart email can be re-sent by the attacker to the
intended receiver. If the receiver replies to this (benign looking) email,
he unknowingly leaks the plaintext of the encrypted message part(s) back to
the attacker. This attack variant bypasses protection mechanisms
implemented after the "EFAIL" attacks.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| enigmail | 26.04 LTS resolute | Not in release |
| 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 | Ignored end of life, was needs-triage |
| 23.04 lunar | Ignored end of life, was needs-triage |
| 22.10 kinetic | Ignored end of life, was needs-triage |
| 22.04 LTS jammy | Needs evaluation |
| 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 | Needs evaluation |
| 19.10 eoan | Ignored end of life |
| 19.04 disco | Ignored end of life |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |
| 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)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14664)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-14664)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-14664)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-14664)

### Other references

* <https://sourceforge.net/p/enigmail/bugs/984/>
* <https://www.enigmail.net/index.php/en/download/changelog>
* <https://www.cve.org/CVERecord?id=CVE-2019-14664>