CVE-2023-3354
Estado: ModificadaAlta (7.5)—
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.61%
- Percentil entre todas las CVEs puntuadas: 75
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (4)
CWE
- CWE-476
- CWE-476
Referencias
- https://access.redhat.com/security/cve/CVE-2023-3354
- https://bugzilla.redhat.com/show_bug.cgi?id=2216478
- https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R/
- https://access.redhat.com/security/cve/CVE-2023-3354
- https://bugzilla.redhat.com/show_bug.cgi?id=2216478
- https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R/
JSON original (NVD)
Mostrar
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