Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality in QEMU 1.0 through 2.1.3 have multiple interpretations of a function's return value, which allows guest OS users to cause a host OS denial of service (memory consumption or infinite loop, and system crash) via a PRDT with zero complete sectors, related to the bmdma_prepare_buf and ahci_dma_prepare_buf functions.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
QEMU 拒绝服务漏洞
Vulnerability Description
QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发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 1.0版本至2.1.3版本的IDE函数中的BMDMA或AHCI HBA接口存在安全漏洞，该漏洞源于函数的返回值使用多义解释。虚拟机操作系统端攻击者可借助畸形的PRDT数据利用该漏洞造成主机操作系统拒绝服务（内存消耗或无限循环，和系统崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A