CVE-2016-3713

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.

CVSS v3.0 7.1 HIGH
CVSS v2.0 5.6 MEDIUM

7.1^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:C

Exploitability : 3.9 / Impact : 7.8

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1332139
http://www.openwall.com/lists/oss-security/2016/05/16/2
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
https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5	Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2016-06-27 03:59

Updated : 2016-06-27 10:57

NVD link : CVE-2016-3713

Mitre link : CVE-2016-3713

JSON object : View

CWE

CWE-284

Improper Access Control

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Products Affected

linux

linux_kernel

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