CVE-2025-11234— Qemu-kvm: vnc websocket handshake use-after-free
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I. Basic Information for CVE-2025-11234
Vulnerability Information
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Vulnerability Title
Qemu-kvm: vnc websocket handshake use-after-free
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
QEMU 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU存在安全漏洞，该漏洞源于QIOChannelWebsock对象在等待完成握手时被释放，可能导致释放后重用和拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 18:10.0.0-14.el10_1.5 ~ * | cpe:/o:redhat:enterprise_linux:10.1 | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020251120003312.489197e6 ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020251202222937.489197e6 ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 17:7.2.0-14.el9_2.24 ~ * | cpe:/a:redhat:rhel_e4s:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 17:8.2.0-11.el9_4.18 ~ * | cpe:/a:redhat:rhel_eus:9.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 17:8.2.0-11.el9_4.19 ~ * | cpe:/a:redhat:rhel_eus:9.4::appstream | |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | 416.94.202601071926-0 ~ * | cpe:/a:redhat:openshift:4.16::el9 | |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | 417.94.202601120213-0 ~ * | cpe:/a:redhat:openshift:4.17::el9 | |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | 418.94.202601071817-0 ~ * | cpe:/a:redhat:openshift:4.18::el9 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
II. Public POCs for CVE-2025-11234
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
V. Comments for CVE-2025-11234
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