National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12168 Detail

Current Description

The access_pmu_evcntr function in arch/arm64/kvm/sys_regs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service (assertion failure and host OS crash) by accessing the Performance Monitors Cycle Count Register (PMCCNTR).

Source:  MITRE      Last Modified:  09/20/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-12168
Original release date:
09/20/2017
Last revised:
09/22/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
6.0 Medium
Vector:
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H (legend)
Impact Score:
4.0
Exploitability Score:
1.5
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.9 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore:
6.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11 Release Notes; Vendor Advisory External Source CONFIRM http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11
https://bugzilla.redhat.com/show_bug.cgi?id=1492984 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1492984
https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9

Technical Details

Vulnerability Type (View All)

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