Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 数字错误漏洞
Vulnerability Description
Xen是英国剑桥（Cambridge）大学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存在数字错误漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。
CVSS Information
N/A
Vulnerability Type
N/A