CVE-2023-6683
Qemu: vnc: null pointer dereference in qemu_clipboard_request()
Summary
Qemu: vnc: null pointer dereference in qemu_clipboard_request()
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-6683 qemu Fixed in: 1:7.2+dfsg-7+deb12u4
References
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- report bugzilla.redhat.com
- web access.redhat.com