CVEvulnerability
CVE-2023-6683
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-01-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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 configurations
• qemu qemu (>= 6.1.0 < 8.2.2)
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://access.redhat.com/errata/RHSA-2024:2135 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:2962 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6683 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825 Issue Tracking, Patch
- https://access.redhat.com/errata/RHSA-2024:2135 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:2962 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6683 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825 Issue Tracking, Patch
- https://security.netapp.com/advisory/ntap-20240223-0001/ Third Party Advisory