Fixed
Created: Jun 29, 2023
Updated: Mar 16, 2025
Resolved Date: Aug 26, 2023
Found In Version: 10.21.20.1
Fix Version: 10.21.20.20
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
https://nvd.nist.gov/vuln/detail/CVE-2023-3354
