---
title: "CVE-2016-3186\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-2016-3186?format=md
keywords: index, follow
---

# CVE-2016-3186

Publication date 19 April 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**6.2 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2016-3186?format=md#impact-score)

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## Description

Buffer overflow in the readextension function in gif2tiff.c in LibTIFF
4.0.6 allows remote attackers to cause a denial of service (application
crash) via a crafted GIF file.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2016-3186?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tiff | 17.10 artful | Not affected |
| 17.04 zesty | Not affected |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Fixed 4.0.6-1ubuntu0.4 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Fixed 4.0.3-7ubuntu0.9 |
| 12.04 LTS precise | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

upstream removed the gif2tiff utility in 4.0.7
patch in redhat bug https://bugzilla.redhat.com/show\_bug.cgi?id=1319666#c6
we will not be fixing this issue in precise/esm

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.2 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | 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 | 6.2 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:L/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-2016-3186)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-3186)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-3186)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-3186)

### Related Ubuntu Security Notices (USN)

+ [USN-3606-1](https://usn.ubuntu.com/USN-3606-1)
+ LibTIFF vulnerabilities
+ 26 March 2018

### Other references

* <http://www.openwall.com/lists/oss-security/2016/03/30/2>
* <https://www.cve.org/CVERecord?id=CVE-2016-3186>