### [CVE-2014-7188](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7188)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.

### POC

#### Reference
- http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf

#### Github
No PoCs found on GitHub currently.