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Security Advisory - VENOM Vulnerability in Huawei Products

  • SA No:Huawei-SA-20150609-01-VENOM
  • Initial Release Date: Jun 09, 2015
  • Last Release Date: Jun 29, 2015

Huawei has noticed the buffer overflow vulnerability in the floppy disk controller (FDC) of QEMU disclosed by open source organization Xen. This vulnerability allows an attacker to escape out of the virtual machine, execute code on the physical host with full privilege. (Vulnerability ID: HWPSIRT-2015-05025)

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-3456.

Product Name

Affected Version

Resolved Product and Version


V100R003C00SPC300 and earlier versions

Upgrade to V100R005C00CP3001

V100R003C10SPC600 and earlier versions

V100R005C00SPC300 and earlier versions


FusionSphere OpenStack

V100R005C00SPC115 and earlier versions


The attacker can execute code on the physical host with full privilege.

The vulnerability classification has been performed by using the CVSSv2 scoring system (

Base Score: 7.7 (AV:A/AC:L/Au:S/C:C/I:C/A:C)

Temporal Score: 6.4 (E:F/RL:O/RC:C)

1. Prerequisite:

The attacker logs in to the virtual machine using the root or administrator privilege.

2. Attacking procedure:

The attack runs the malicious program in the virtual machine to cause a buffer overflow and exploit the vulnerability.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at

This vulnerability was reported by open source organization Xen. Huawei PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.

For security problems about Huawei products and solutions, please contact

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

2015-06-29 V1.1 UPDATED updated list of affected products

2015-06-09 V1.0 INITIAL

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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