CVE-2023-3354

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2023-3354	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2216478	Issue Tracking Patch
https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R/	Mailing List

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:qemu:qemu::::::::
	cpe:2.3:a:qemu:qemu:8.1.0:rc0::::::
	cpe:2.3:a:qemu:qemu:8.1.0:rc1::::::

Configuration 2 (hide)

OR	cpe:2.3:a:redhat:openstack_platform:13.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0::::-:::
	cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization:::
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-07-11 17:15

Updated : 2024-03-11 18:15

NVD link : CVE-2023-3354

Mitre link : CVE-2023-3354

CVE.ORG link : CVE-2023-3354

JSON object : View

Products Affected

qemu

qemu

fedoraproject

fedora

redhat

enterprise_linux
openstack_platform

CWE

CWE-476

NULL Pointer Dereference

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