CVE-2023-6683 (GCVE-0-2023-6683)
Vulnerability from cvelistv5
Published
2024-01-12 19:01
Modified
2025-11-08 07:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
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.
References
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Impacted products
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| ► | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 8100020240314161907.e155f54d < * cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::appstream |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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