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CVE-2024-3446— Qemu: virtio: dma reentrancy issue leads to double free vulnerability

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 virtio 存在资源管理错误漏洞，该漏洞源于virtio-gpu、virtio-serial-bus、virtio-crypto 中存在双重释放漏洞，mem_reentrancy_guard 标志不足，可能允许攻击者使主机上的 QEMU 进程崩溃，从而导致拒绝服务或在主机上的 QEMU 进程上下文中执行任意代码。

CVSS 8.2 · High EPSS 0.30% · P21
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I. Basic Information for CVE-2024-3446

Vulnerability Information
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Vulnerability Title
Qemu: virtio: dma reentrancy issue leads to double free vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A double free vulnerability was found in QEMU virtio devices (virtio-gpu, virtio-serial-bus, virtio-crypto), where the mem_reentrancy_guard flag insufficiently protects against DMA reentrancy issues. This issue could allow a malicious privileged guest user to crash the QEMU process on the host, resulting in a denial of service or allow arbitrary code execution within the context of the QEMU process on the host.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 资源管理错误漏洞
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 virtio 存在资源管理错误漏洞，该漏洞源于virtio-gpu、virtio-serial-bus、virtio-crypto 中存在双重释放漏洞，mem_reentrancy_guard 标志不足，可能允许攻击者使主机上的 QEMU 进程崩溃，从而导致拒绝服务或在主机上的 QEMU 进程上下文中执行任意代码。
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 8 8100020240905091210.489197e6 ~ * cpe:/a:redhat:enterprise_linux:8::crb
Red Hat Red Hat Enterprise Linux 8 8100020240905091210.489197e6 ~ * cpe:/a:redhat:enterprise_linux:8::crb
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 8 Advanced Virtualization - cpe:/a:redhat:advanced_virtualization:8::el8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2024-3446

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III. Intelligence Information for CVE-2024-3446

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Vendor Advisories for CVE-2024-3446 (2)

Other References for CVE-2024-3446 (1)

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 8
Same vendor: Red Hat
Same weakness: CWE-415

V. Comments for CVE-2024-3446

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