Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020240314161907.e155f54d before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020240314161907.e155f54d before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 17:8.2.0-11.el9_4 before * |
| Red Hat / Red Hat Enterprise Linux 6 | unaffected |
| Red Hat / Red Hat Enterprise Linux 7 | unaffected |
| Red Hat / Red Hat Enterprise Linux 7 | unaffected |
| Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization | unaffected |
CWE
CWE-476
References
- https://access.redhat.com/errata/RHSA-2024:2135
- https://access.redhat.com/errata/RHSA-2024:2962
- https://access.redhat.com/security/cve/CVE-2023-6683
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.