---
title: "CVE-2020-14928\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-2020-14928?format=md
keywords: index, follow
---

# CVE-2020-14928

Publication date 8 July 2020

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.9 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2020-14928?format=md#impact-score)

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## Description

evolution-data-server (eds) through 3.36.3 has a STARTTLS buffering issue
that affects SMTP and POP3. When a server sends a "begin TLS" response, eds
reads additional data and evaluates it in a TLS context, aka "response
injection."

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| evolution-data-server | 20.04 LTS focal | Fixed 3.36.3-0ubuntu1.1 |
| 19.10 eoan | Ignored end of life |
| 18.04 LTS bionic | Fixed 3.28.5-0ubuntu0.18.04.3 |
| 16.04 LTS xenial | Fixed 3.18.5-1ubuntu1.3 |
| 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-2020-14928?format=md#patch-details)

### 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 |
| --- | --- |
| evolution-data-server | * Upstream:   [f404f33](https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/f404f33fb01b23903c2bbb16791c7907e457fbac) * Upstream:   [b74b765](https://gitlab.gnome.org/GNOME/evolution-data-server/-/commit/b74b765188d96803814acf69a510a7160d9ee6c5) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.9 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.9 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14928)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-14928)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-14928)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-14928)

### Related Ubuntu Security Notices (USN)

+ [USN-4429-1](https://usn.ubuntu.com/USN-4429-1)
+ Evolution Data Server vulnerability
+ 22 July 2020

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2020-14928>