CVE-2016-1571
First published: Fri Jan 22 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| XenServer | <=6.5 | |
| Xen XAPI | =3.3.0 | |
| Xen XAPI | =3.3.1 | |
| Xen XAPI | =3.3.2 | |
| Xen XAPI | =3.4.0 | |
| Xen XAPI | =3.4.1 | |
| Xen XAPI | =3.4.2 | |
| Xen XAPI | =3.4.3 | |
| Xen XAPI | =3.4.4 | |
| Xen XAPI | =4.1.0 | |
| Xen XAPI | =4.1.1 | |
| Xen XAPI | =4.1.2 | |
| Xen XAPI | =4.1.3 | |
| Xen XAPI | =4.1.4 | |
| Xen XAPI | =4.1.5 | |
| Xen XAPI | =4.1.6 | |
| Xen XAPI | =4.1.6.1 | |
| Xen XAPI | =4.2.0 | |
| Xen XAPI | =4.2.1 | |
| Xen XAPI | =4.2.2 | |
| Xen XAPI | =4.2.3 | |
| Xen XAPI | =4.2.4 | |
| Xen XAPI | =4.2.5 | |
| Xen XAPI | =4.3.0 | |
| Xen XAPI | =4.3.1 | |
| Xen XAPI | =4.3.2 | |
| Xen XAPI | =4.3.3 | |
| Xen XAPI | =4.3.4 | |
| Xen XAPI | =4.4.0 | |
| Xen XAPI | =4.4.0-rc1 | |
| Xen XAPI | =4.4.1 | |
| Xen XAPI | =4.4.2 | |
| Xen XAPI | =4.4.3 | |
| Xen XAPI | =4.5.0 | |
| Xen XAPI | =4.5.1 | |
| Xen XAPI | =4.5.2 | |
| Xen XAPI | =4.6.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-1571?
CVE-2016-1571 is classified as a high severity vulnerability that can lead to denial of service conditions on the host.
How do I fix CVE-2016-1571?
To fix CVE-2016-1571, users should upgrade to a fixed version of Xen that addresses this vulnerability.
Who is affected by CVE-2016-1571?
CVE-2016-1571 affects local HVM guest users of Xen versions from 3.3.x through 4.6.x who are using shadow mode paging or nested virtualization.
What type of attack does CVE-2016-1571 enable?
CVE-2016-1571 allows a local attacker to cause a denial of service by sending a non-canonical guest address in an INVVPID instruction.
Can CVE-2016-1571 crash the host?
Yes, CVE-2016-1571 can trigger a host crash through a denial of service due to improper handling of INVVPID instructions.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/citrix
- canonical/xenserver
- version/xenserver/6.5
- vendor/xen
- canonical/xen xapi
- version/xen xapi/3.3.0
- version/xen xapi/3.3.1
- version/xen xapi/3.3.2
- version/xen xapi/3.4.0
- version/xen xapi/3.4.1
- version/xen xapi/3.4.2
- version/xen xapi/3.4.3
- version/xen xapi/3.4.4
- version/xen xapi/4.1.0
- version/xen xapi/4.1.1
- version/xen xapi/4.1.2
- version/xen xapi/4.1.3
- version/xen xapi/4.1.4
- version/xen xapi/4.1.5
- version/xen xapi/4.1.6
- version/xen xapi/4.1.6.1
- version/xen xapi/4.2.0
- version/xen xapi/4.2.1
- version/xen xapi/4.2.2
- version/xen xapi/4.2.3
- version/xen xapi/4.2.4
- version/xen xapi/4.2.5
- version/xen xapi/4.3.0
- version/xen xapi/4.3.1
- version/xen xapi/4.3.2
- version/xen xapi/4.3.3
- version/xen xapi/4.3.4
- version/xen xapi/4.4.0
- version/xen xapi/4.4.0-rc1
- version/xen xapi/4.4.1
- version/xen xapi/4.4.2
- version/xen xapi/4.4.3
- version/xen xapi/4.5.0
- version/xen xapi/4.5.1
- version/xen xapi/4.5.2
- version/xen xapi/4.6.0