---
title: "CVE-2017-15923\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-2017-15923?format=md
keywords: index, follow
---

# CVE-2017-15923

Publication date 15 November 2017

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2017-15923?format=md#impact-score)

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## Description

Konversation 1.4.x, 1.5.x, 1.6.x, and 1.7.x before 1.7.3 allow remote
attackers to cause a denial of service (crash) via vectors related to
parsing of IRC color formatting codes.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| konversation | 17.10 artful | Fixed 1.7.2-1ubuntu1.1 |
| 17.04 zesty | Fixed 1.6.2-0ubuntu1.1 |
| 16.04 LTS xenial | Fixed 1.6-0ubuntu1.1 |
| 14.04 LTS trusty | Fixed 1.5-1ubuntu1.14.04.2 |

---

* [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**

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-2017-15923)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-15923)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-15923)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-15923)

### Other references

* <https://cgit.kde.org/konversation.git/commit/?h=1.7&id=6a7f59ee1b9dbc6e5cf9e5f3b306504d02b73ef0>
* <https://www.cve.org/CVERecord?id=CVE-2017-15923>