#VU87738 NULL pointer dereference in QEMU - CVE-2023-6683

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Main Vulnerability Database Vulnerabilities #VU87738

#VU87738 NULL pointer dereference in QEMU - CVE-2023-6683

Published: March 22, 2024


Vulnerability identifier: #VU87738
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-6683
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
QEMU
Software vendor:
QEMU

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when processing ClientCutText messages within the QEMU built-in VNC server. A remote authenticated VNC client can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links