---
title: "CVE-2017-14223\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-2017-14223?format=md
keywords: index, follow
---

# CVE-2017-14223

Publication date 9 September 2017

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**6.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-14223?format=md#impact-score)

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## Description

In libavformat/asfdec\_f.c in FFmpeg 3.3.3, a DoS in
asf\_build\_simple\_index() due to lack of an EOF (End of File) check might
cause huge CPU consumption. When a crafted ASF file, which claims a large
"ict" field in the header but does not contain sufficient backing data, is
provided, the for loop would consume huge CPU and memory resources, since
there is no EOF check inside the loop.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ffmpeg | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.04 LTS xenial | Fixed 7:2.8.14-0ubuntu0.16.04.1 |
| 14.04 LTS trusty | Not in release |
| libav | 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 17.10 artful | Not in release |
| 17.04 zesty | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not affected |

---

* [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 | None |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

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

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14223)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-14223)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-14223)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-14223)

### Other references

* <https://github.com/FFmpeg/FFmpeg/commit/afc9c683ed9db01edb357bc8c19edad4282b3a97>
* <https://www.cve.org/CVERecord?id=CVE-2017-14223>