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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.

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Releases

Packages

Details

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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

References

Related notices

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

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Further reading