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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2023-07-11T16:16:56.294Z

Updated: 2023-07-11T16:16:56.294Z

Reserved: 2023-06-21T12:33:29.897Z


Link: CVE-2023-3354

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2023-07-11T17:15:13.387

Modified: 2024-03-11T18:15:15.843


Link: CVE-2023-3354

JSON object: View

cve-icon Redhat Information

No data.

CWE