---
title: CVE-2018-19210
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-2018-19210
---

# CVE-2018-19210

Publication date 12 November 2018

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-2018-19210#impact-score)

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## Description

In LibTIFF 4.0.9, there is a NULL pointer dereference in the
TIFFWriteDirectorySec function in tif\_dirwrite.c that will lead to a denial
of service attack, as demonstrated by tiffset.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tiff | 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Not affected |
| 19.04 disco | Not affected |
| 18.10 cosmic | Fixed 4.0.9-6ubuntu0.2 |
| 18.04 LTS bionic | Fixed 4.0.9-5ubuntu0.2 |
| 16.04 LTS xenial | Fixed 4.0.6-1ubuntu0.6 |
| 14.04 LTS trusty | Fixed 4.0.3-7ubuntu0.11 |

---

* [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-2018-19210#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 |
| --- | --- |
| tiff | * Other:   <https://gitlab.com/libtiff/libtiff/merge_requests/47> * Upstream:   [d0a842c](https://gitlab.com/libtiff/libtiff/commit/d0a842c5dbad2609aed43c701a12ed12461d3405) * Upstream:   [38ede78](https://gitlab.com/libtiff/libtiff/commit/38ede78b13810ff0fa8e61f86ef9aa0ab2964668) |

## 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-2018-19210)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-19210)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-19210)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-19210)

### Related Ubuntu Security Notices (USN)

+ [USN-3906-1](https://usn.ubuntu.com/USN-3906-1)
+ LibTIFF vulnerabilities
+ 12 March 2019

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2018-19210>