Detections
Analytics
CVE-2016-3713
high
Description
The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.
References
https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5
https://bugzilla.redhat.com/show_bug.cgi?id=1332139
http://www.openwall.com/lists/oss-security/2016/05/16/2