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CVE-2016-1571

Date: January 22, 2016

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.

Language: C

Severity Score

Related Resources (7)

http://www.debian.org/security/2016/dsa-3519
https://access.redhat.com/security/cve/CVE-2016-1571
https://nvd.nist.gov/vuln/detail/CVE-2016-1571
http://xenbits.xen.org/xsa/advisory-168.html
http://support.citrix.com/article/CTX205496
http://www.securitytracker.com/id/1034745
https://www.mend.io/vulnerability-database/CVE-2016-1571

Severity Score

Weakness Type (CWE)

Code

CWE-17

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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