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Security Advisory - Xen Vulnerabilities on Huawei FusionSphere products

  • SA No:Huawei-SA-20150327- 01-Xen
  • Initial Release Date: Apr 10, 2015
  • Last Release Date: Apr 10, 2015

This security advisory (SA) describes the impact of Xen vulnerabilities discovered in website.

This vulnerability is referenced in this document as follows:

XSA-120: Non-maskable interrupts triggerable by guests. In the event that the platform surfaces aforementioned UR responses as Non-Maskable Interrupts, and either the OS is configured to treat NMIs as fatal or (e.g. via ACPI's APEI) the platform tells the OS to treat these errors as fatal, the host would crash, leading to a Denial of Service.( HWPSIRT-2015-03019)

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-2150.

XSA-123: Hypervisor memory corruption due to x86 emulator flaw. A malicious guest might be able to read sensitive data relating to other guests, or to cause denial of service on the host. Arbitrary code execution, and therefore privilege escalation, cannot be excluded. (HWPSIRT-2015-03020)

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-2151.

XSA-121: Information leak via internal x86 system device emulation. A malicious HVM guest might be able to read sensitive data relating to other guests. (HWPSIRT-2015-03021)

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-2044.

XSA-122: Information leak through version information hypercall. A malicious guest might be able to read sensitive data relating to other guests.

 This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-2045.

Product Name

Affected Version

Solved version

FusionCompute

V100R003C00
V100R003C10

Upgrade to  V100R005C00SPC300 or Reference to Product warning

V100R005C00

V100R005C00SPC300

GalaxEngine

V100R002C02

Upgrade to  V100R005C00SPC300 or Reference to Product warning

SingleCLOUD

V100R002C00
V100R002C01
V100R002C85

Upgrade to  V100R005C00SPC300 or Reference to Product warning

Successful exploitation of these vulnerabilities may allow an attacker to modify memory address of the Hypervisor. As a result, a malicious guest OS can obtain the information of other guest OSs, leading to the disclosure of sensitive information. The malicious user can also exploit the vulnerability to execute arbitrary code to escalate the privilege and control the entire virtual machine.

The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).

CVE-2015-2150:

Base Score: 5.5 (L/AC:M/Au:S/C:C/I:P/A:P)

Temporal Score: 4.6 (E:F/RL:O/RC:C)

 

CVE-2014-2151:

Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)

Temporal Score: 5.9 (E:F/RL:O/RC:C)

 

CVE-2015-2044:

Base Score: 2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N)

Temporal Score: 1.7 (E:F/RL:O/RC:C)

 

CVE-2014-2045:

Base Score: 2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N)

Temporal Score: 1.7 (E:F/RL:O/RC:C)

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/security/psirt/report-vulnerabilities/index.htm.


This vulnerability is disclosed by website. The link is same with “Technique Details” link.

For security problems about Huawei products and solutions, please contactPSIRT@huawei.com.

For general problems about Huawei products and solutions, please directly contact Huawei TAC (Huawei Technical Assistance Center) to request the configuration or technical assistance.


2015-04-10 V1.0 INITIAL

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.


Complete information for providing feedback on security vulnerability of Huawei products, getting support for Huawei security incident response services, and obtaining Huawei security vulnerability information, is available on Huawei's worldwide website at http://www.huawei.com/en/security/psirt/.