USN-8494-1: LibVNCServer vulnerability

Publication date

2 July 2026

Overview

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


Packages

Details

It was discovered that LibVNCServer incorrectly handled the Tight decoder
in libvncclient. A remote attacker could use this issue to cause
LibVNCServer to crash, resulting in a denial of service, or possibly
execute arbitrary code.

It was discovered that LibVNCServer incorrectly handled the Tight decoder
in libvncclient. A remote attacker could use this issue to cause
LibVNCServer to crash, resulting in a denial of service, or possibly
execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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


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