Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ).
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen‘hvm/irq.c’拒绝服务漏洞
Vulnerability Description
Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.6版本的arch/x86/hvm/irq.c文件中的‘hvm_set_callback_via’函数中存在安全漏洞，该漏洞源于HVM_PARAM_CALLBACK_IRQ记录新的回调函数时，程序没有限制printk控制台消息的数量。本地虚拟机端攻击者可借助对大量回调函数的更改利用该漏洞造成拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A