NVD - CVE-2015-8551

CVE-2015-8551 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 PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

Source: MITRE
Description Last Modified: 04/13/2016

Evaluator Description

CWE-476: NULL Pointer Dereference

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 0.8

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

CVSS v2.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.4

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

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
http://www.debian.org/security/2016/dsa-3434
http://www.securityfocus.com/bid/79546	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1034480	Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-157.html	Vendor Advisory
https://security.gentoo.org/glsa/201604-03

Technical Details

Vulnerability Type (View All)

Other (NVD-CWE-Other)

Vulnerable software and versions Switch to CPE 2.2

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Change History

8 change records found - show changes

Modified Analysis - 8/12/2016 10:04:28 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	Record truncated, showing 500 of 23627 characters. View Entire Change Record Configuration 1 OR cpe:2.3:o:debian:debian_linux:6.0::::::: cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::* Configuration 2 AND OR cpe:2.3:o:linux:linux_kernel:4.3.6::::::: cpe:2.3:o:linux:linux_kernel:4.3.3::::::: cpe:2.3:o:linux:linux_kernel:4.3.2::::::: cpe:2.3:o:linux:linux_kernel:4.3:rc7::::::* cpe:2.3:o:linux:linux_kernel:4.2.8::	Record truncated, showing 500 of 23908 characters. View Entire Change Record Configuration 1 OR cpe:2.3:o:debian:debian_linux:6.0::::::: cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::* Configuration 2 AND OR cpe:2.3:o:linux:linux_kernel:4.3.6::::::: cpe:2.3:o:linux:linux_kernel:4.3.3::::::: cpe:2.3:o:linux:linux_kernel:4.3.2::::::: cpe:2.3:o:linux:linux_kernel:4.3:rc7::::::* cpe:2.3:o:linux:linux_kernel:4.2.8::
Changed	Reference Type	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html No Types Assigned	http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html Third Party Advisory
Changed	Reference Type	http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html No Types Assigned	http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html Third Party Advisory
Changed	Reference Type	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html No Types Assigned	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html Third Party Advisory
Changed	Reference Type	http://www.securityfocus.com/bid/79546 No Types Assigned	http://www.securityfocus.com/bid/79546 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1034480 No Types Assigned	http://www.securitytracker.com/id/1034480 Third Party Advisory, VDB Entry

Modified Analysis - 4/18/2016 9:47:37 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 23627 characters. View Entire Change Record Configuration 1 OR cpe:2.3:o:debian:debian_linux:6.0::::::: cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::* Configuration 2 AND OR cpe:2.3:o:linux:linux_kernel:4.3.6::::::: cpe:2.3:o:linux:linux_kernel:4.3.3::::::: cpe:2.3:o:linux:linux_kernel:4.3.2::::::: cpe:2.3:o:linux:linux_kernel:4.3:rc7::::::* cpe:2.3:o:linux:linux_kernel:4.2.8::
Added	CVSS V2		(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Added	CVSS V3		AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
Added	CWE		NVD-CWE-Other
Added	Evaluator Description		<a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a>
Changed	Reference Type	http://xenbits.xen.org/xsa/advisory-157.html No Types Assigned	http://xenbits.xen.org/xsa/advisory-157.html Advisory

Quick Info

CVE Dictionary Entry:
CVE-2015-8551
NVD Published Date:
04/13/2016
NVD Last Modified:
11/03/2017

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CVE-2015-8551 Detail

Description

Evaluator 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 - 11/3/2017 9:29:13 PM

CVE Modified by MITRE - 6/30/2017 9:29:26 PM

CVE Modified by MITRE - 12/2/2016 10:13:42 PM

CVE Modified by MITRE - 11/28/2016 2:48:08 PM

Modified Analysis - 8/12/2016 10:04:28 AM

CVE Modified by Source - 8/11/2016 9:59:18 PM

Modified Analysis - 4/18/2016 9:47:37 AM

Initial CVE Analysis - 4/15/2016 12:41:15 PM

Quick Info