National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-3713 Detail

Description

The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.

Source:  MITRE
Description Last Modified:  06/27/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.1 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H (V3 legend)
Impact Score: 5.2
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:C) (V2 legend)
Impact Subscore: 7.8
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5 Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
http://www.openwall.com/lists/oss-security/2016/05/16/2
https://bugzilla.redhat.com/show_bug.cgi?id=1332139
https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.6


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-3713
NVD Published Date:
06/27/2016
NVD Last Modified:
06/27/2016