CVE-2016-1571
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…
Does this matter?
Lower severity and a low EPSS score (1.28%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.3 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 1.28% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-17
- Affected
- citrix/xenserver · xen/xen
- Source
- cve@mitre.org
References
- http://support.citrix.com/article/CTX205496Third Party Advisory
- http://www.debian.org/security/2016/dsa-3519
- http://www.securitytracker.com/id/1034745Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-168.htmlVendor Advisory
- http://support.citrix.com/article/CTX205496Third Party Advisory
- http://www.debian.org/security/2016/dsa-3519
- http://www.securitytracker.com/id/1034745Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-168.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.