---
title: "CVE-2017-13078\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-2017-13078?format=md
keywords: index, follow
---

# CVE-2017-13078

Publication date 16 October 2017

Last updated 25 August 2025

---

Ubuntu priority

**High**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-13078?format=md#impact-score)

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## Description

Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Group
Temporal Key (GTK) during the four-way handshake, allowing an attacker
within radio range to replay frames from access points to clients.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wpa | 17.04 zesty | Fixed 2.4-0ubuntu9.1 |
| 16.04 LTS xenial | Fixed 2.4-0ubuntu6.2 |
| 14.04 LTS trusty | Fixed 2.1-0ubuntu1.5 |

---

* [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**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Adjacent |
  | 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 | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:A/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-2017-13078)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-13078)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-13078)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-13078)

### Related Ubuntu Security Notices (USN)

+ [USN-3455-1](https://usn.ubuntu.com/USN-3455-1)
+ wpa\_supplicant and hostapd vulnerabilities
+ 16 October 2017

### Other references

* <https://www.krackattacks.com/>
* <https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt>
* <https://www.cve.org/CVERecord?id=CVE-2017-13078>