Your submission was sent successfully! Close

USN-3618-1: LibVNCServer vulnerability

4 April 2018

LibVNCServer could be made to crash, expose sensitive information, or run programs if it received specially crafted network traffic.




It was discovered that LibVNCServer incorrectly handled certain packet
lengths. A remote attacker able to connect to a LibVNCServer could possibly
use this issue to obtain sensitive information, cause a denial of service,
or execute arbitrary code.

Update instructions

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

Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

After a standard system update you need to restart LibVNCServer
applications to make all the necessary changes.


Related notices

  • USN-4547-1: italc, libitalccore, italc-client, italc-master
  • USN-4573-1: vino
  • USN-4587-1: italc-master, italc, italc-client, italc-management-console, libitalccore