Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 拒绝服务
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 3.2.x版本至4.6.x版本中存在安全漏洞，该漏洞源于程序记录HYPERCALL_xenoprof_op和HYPERVISOR_xenpmu_op超级调用日志时没有限制printk控制台消息的数量。本地攻击者可利用该漏洞造成拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A