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Security Advisory - Memory Leak Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20161221-01-ldp
  • Initial Release Date: Dec 21, 2016
  • Last Release Date: Dec 21, 2016

Some Huawei products have a memory leak vulnerability. An unauthenticated attacker may send specific Label Distribution Protocol (LDP) packets to the devices. When the values of some parameters in the packet are abnormal, the LDP processing module does not release the memory to handle the packet, resulting in memory leak. (Vulnerability ID: HWPSIRT-2016-08055) 
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-8784. 
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20161221-01-ldp-en

Product Name

Affected Version

Resolved Product and Version

CloudEngine 12800

V100R003C00

Upgrade to V100R003SPH011

V100R003C10

V100R005C00

Upgrade to V100R005SPH005

V100R005C10

V100R006C00

Upgrade to V100R006SPH005

An attacker can exploit this vulnerability to cause memory leak.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 4.3 (AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Temporal Score: 4.0 (E:F/RL:O/RC:C)

This vulnerability can be exploited only when the following conditions are present:

1. An attacker could access to the LAN side of the device.

2. The MPLS function of the device is enable and LDP packets can be received and handled in the access site.

Vulnerability details:

An unauthenticated attacker may send specific Label Distribution Protocol (LDP) packets to the devices. When the values of some parameters in the packet are abnormal, the LDP processing module does not release the memory to handle the packet, resulting in memory leak.

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/psirt/report-vulnerabilities.

This vulnerability was discovered by Huawei internal tester.

2016-12-21 V1.0 INITIAL

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

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.