Debian Security Bug TrackerDEBIANCVE:CVE-2023-3354CVE-2023-3354
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
21.2%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | qemu | < 1:7.2+dfsg-7+deb12u2 | qemu_1:7.2+dfsg-7+deb12u2_all.deb |
| Debian | 11 | all | qemu | < 1:5.2+dfsg-11+deb11u3 | qemu_1:5.2+dfsg-11+deb11u3_all.deb |
| Debian | 999 | all | qemu | < 1:8.0.4+dfsg-1 | qemu_1:8.0.4+dfsg-1_all.deb |
| Debian | 13 | all | qemu | < 1:8.0.4+dfsg-1 | qemu_1:8.0.4+dfsg-1_all.deb |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
21.2%