---
title: "CVE-2017-5885\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-2017-5885?format=md
keywords: index, follow
---

# CVE-2017-5885

Publication date 7 February 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2017-5885?format=md#impact-score)

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## Description

Multiple integer overflows in the (1) vnc\_connection\_server\_message and (2)
vnc\_color\_map\_set functions in gtk-vnc before 0.7.0 allow remote servers to
cause a denial of service (crash) or possibly execute arbitrary code via
vectors involving SetColorMapEntries, which triggers a buffer overflow.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gtk-vnc | 16.10 yakkety | Fixed 0.6.0-1ubuntu1.1 |
| 16.04 LTS xenial | Fixed 0.5.3-1.3ubuntu2.1 |
| 14.04 LTS trusty | Fixed 0.5.3-0ubuntu2.1 |
| 12.04 LTS precise | Fixed 0.5.0-1ubuntu1.1 |

---

* [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-2017-5885?format=md#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 |
| --- | --- |
| gtk-vnc | * Upstream:   [?id=661](https://git.gnome.org/browse/gtk-vnc/commit/?id=661a676e556fef17e53c09b9e2656adc80eb0acf) * Upstream:   [?id=c85](https://git.gnome.org/browse/gtk-vnc/commit/?id=c8583fd3783c5b811590fcb7bae4ce6e7344963e) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5885)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-5885)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-5885)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-5885)

### Related Ubuntu Security Notices (USN)

+ [USN-3203-1](https://usn.ubuntu.com/USN-3203-1)
+ gtk-vnc vulnerabilities
+ 20 February 2017

### Other references

* <http://openwall.com/lists/oss-security/2017/02/05/5>
* <https://www.cve.org/CVERecord?id=CVE-2017-5885>