Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.6 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842dfVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
- http://www.openwall.com/lists/oss-security/2016/05/16/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1332139
- https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dcVendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842dfVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
- http://www.openwall.com/lists/oss-security/2016/05/16/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1332139
- https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dcVendor Advisory
FAQ
What is CVE-2016-3713?
CVE-2016-3713 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 consequent...
How severe is CVE-2016-3713?
CVE-2016-3713 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-3713?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.