Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
8100020240314161907.e155f54d to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
8100020240314161907.e155f54d to < *unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
17:8.2.0-11.el9_4 to < *unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 7
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 7
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization
Default version status: unaffected