NVD - CVE-2015-0239

CVE-2015-0239 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.

Source: MITRE
Description Last Modified: 03/02/2015

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: (AV:L/AC:H/Au:N/C:N/I:P/A:C) (V2 legend)
Impact Subscore: 7.8
Exploitability Subscore: 1.9

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

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f3747379accba8e95d70cec0eae0582c8c182050
http://permalink.gmane.org/gmane.linux.kernel.commits.head/502245
http://rhn.redhat.com/errata/RHSA-2015-1272.html
http://www.debian.org/security/2015/dsa-3170
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
http://www.openwall.com/lists/oss-security/2015/01/27/6
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/72842
http://www.ubuntu.com/usn/USN-2513-1
http://www.ubuntu.com/usn/USN-2514-1
http://www.ubuntu.com/usn/USN-2515-1
http://www.ubuntu.com/usn/USN-2516-1
http://www.ubuntu.com/usn/USN-2517-1
http://www.ubuntu.com/usn/USN-2518-1
https://bugzilla.redhat.com/show_bug.cgi?id=1186448
https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050

Technical Details

Vulnerability Type (View All)

Race Conditions (CWE-362)

Vulnerable software and versions Switch to CPE 2.2

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Change History

11 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-0239
NVD Published Date:
03/02/2015
NVD Last Modified:
12/23/2016

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-0239 Detail

Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 12/23/2016 9:59:04 PM

CVE Modified by Source - 10/14/2016 10:00:29 PM

CVE Modified by Source - 10/11/2016 9:59:57 PM

CVE Modified by Source - 3/25/2015 10:00:46 PM

CVE Modified by Source - 3/18/2015 9:59:59 PM

CVE Modified by Source - 3/17/2015 10:04:02 PM

CVE Modified by Source - 3/11/2015 10:01:42 PM

Modified Analysis - 3/6/2015 10:32:25 PM

CVE Modified by Source - 3/5/2015 10:00:08 PM

Modified Analysis - 3/3/2015 1:34:29 PM

Initial CVE Analysis - 3/2/2015 6:37:22 PM

Quick Info