CVE-2016-1571

Description

The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.

Category

6.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.43%
Vendor Advisory debian.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2016/dsa-3519 vendor advisory
http://www.securitytracker.com/id/1034745 third party advisory vdb entry
http://support.citrix.com/article/CTX205496 third party advisory
http://xenbits.xen.org/xsa/advisory-168.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-1571?
CVE-2016-1571 has been scored as a medium severity vulnerability.
How to fix CVE-2016-1571?
To fix CVE-2016-1571, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-1571 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-1571 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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