CVE-2016-7092

Related Vulnerabilities: CVE-2016-7092  

The get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables.

The MITRE CVE dictionary describes this issue as:

The get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables.

Find out more about CVE-2016-7092 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6
Base Metrics AV:N/AC:M/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 8.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity Impact High
Availability Impact High

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 xen Will not fix

Acknowledgements

Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Jérémie Boutoille (Quarkslab) and Shangcong Luan (Alibaba Cloud) as the original reporters.

External References