CVE-2023-6683
Last modified
CVE-2023-6683 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | >= 6.1.0, < 8.2.2 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://access.redhat.com/errata/RHSA-2024:2135Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:2962Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6683Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825Issue Tracking, Patch
- https://access.redhat.com/errata/RHSA-2024:2135Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:2962Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6683Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254825Issue Tracking, Patch
- https://security.netapp.com/advisory/ntap-20240223-0001/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
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