USN-3203-1: gtk-vnc vulnerabilities

Ubuntu Security Notice USN-3203-1

20th February, 2017

gtk-vnc vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 14.04 LTS



• Ubuntu 12.04 LTS

Summary

gtk-vnc could be made to crash or run programs if it received specially
crafted network traffic.

Software description

• gtk-vnc
  - VNC viewer widget
  
  

Details

It was discovered that gtk-vnc incorrectly validated certain data. A
malicious server could use this issue to cause gtk-vnc to crash, resulting
in a denial of service, or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following
package version:

Ubuntu 14.04 LTS:

Ubuntu 12.04 LTS:

To update your system, please follow these instructions:
,

CVE-2017-5885