A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service.
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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2024-01-12T19:01:25.542Z

Updated: 2024-09-13T23:30:49.190Z

Reserved: 2023-12-11T14:45:48.417Z

Link: CVE-2023-6683

cve-icon Vulnrichment

Updated: 2024-08-02T08:35:15.116Z

cve-icon NVD

Status : Modified

Published: 2024-01-12T19:15:11.480

Modified: 2024-09-14T00:15:14.397

Link: CVE-2023-6683

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-01-12T00:00:00Z

Links: CVE-2023-6683 - Bugzilla