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Security Advisory-Multiple Heap Overflow Vulnerabilities in Huawei Campus Series Switches

  • SA No:Huawei-SA-20140604-01-Campus
  • Initial Release Date: Jun 04, 2014
  • Last Release Date: Jul 08, 2014

Some Huawei Campus series switches have three heap overflow vulnerabilities. When receiving some special malformed packets, such devices access heap memory that is beyond the valid range and cause unexpected restart of the devices. If an attacker keeps sending such malformed packets, the devices will repeatedly restart, causing a denial of service (DoS) attack (Vulnerability ID: HWPSIRT-2014-0112).

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2014-4706.

Huawei has provided a fixed version.

Product Name

Vulnerable Version

Campus S3700HI/ S5700/ S6700 S3300HI/ S5300/ S6300/ S9300/ S7700
LSW S9700

V200R001C00SPC300

Campus S5700/ S6700/ S5300/ S6300

V200R002C00SPC100

Campus S7700/ S9300/ S9300E / S5300/ S5700/ S6300/ S6700/ S2350/ S2750
LSW S9700

V200R003C00SPC300

Campus S7700/S9300/S9300E
LSW S9700

V200R003C00SPC500

Successful exploitation of the vulnerability can cause a DoS attack.

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

Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)

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

1. Prerequisite:

The attacker can remotely access the target devices.

2. Attacking procedure:

An attacker can trigger the vulnerability by remotely sending a special malformed packet. The validity of some length fields in the malformed packets is not checked. As a result, the devices receiving such malformed packets copy too much data into the heap memory and overwrite some other useful data, causing unexpected system restart.

 

Upgrading version and upgrading date:

Product name

Solved version

Version Status

Campus S3700HI/ S5700/ S6700 S3300HI/ S5300/ S6300/ S9300/ S7700
LSW S9700

V200R001SPH013

Released

Campus S5700/ S6700/ S5300/ S6300

V200R002SPH005

Released

Campus S7700/ S9300/ S9300E / S5300/ S5700/ S6300/ S6700/ S2350/ S2750
LSW S9700

V200R003SPH005

Released

Campus S7700/S9300/S9300E
LSW S9700

V200R005C00SPC300

Released


Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades, or obtain them through Huawei worldwide website at http://support.huawei.com/enterprise/. 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 found by Huawei internal testing team. The 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 PSIRT@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.


2014-07-08 V1.2 UPDATED add CVE-ID information

2014-06-10 V1.1 UPDATED update the Software Versions and Fixes

2014-06-04 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 on 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/.