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Security Advisory - Out-Of-Bound Read Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20191023-01-buffer
  • Initial Release Date: Oct 23, 2019
  • Last Release Date: Oct 23, 2019

There is an out of bound read vulnerability in some Huawei products. A remote, unauthenticated attacker may send a corrupt or crafted message to the affected products. Due to a buffer read overflow error when parsing the message, successful exploit may cause some service abnormal. (Vulnerability ID: HWPSIRT-2019-04073)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-5294.

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-20191023-01-buffer-en


Product Name

Affected Version

Resolved Product and Version

AR120-S

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR1200

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR1200-S

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR150

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR150-S

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR160

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR200

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR200-S

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR2200

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR2200-S

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

AR3200

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

AR3600

V200R006C10

Upgrade to V200R008C50SPC500

V200R007C00

NetEngine16EX

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

SRG1300

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

SRG2300

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00

SRG3300

V200R005C20

Upgrade to V200R008C50SPC500

V200R006C10

V200R007C00


An attacker may exploit the vulnerability to cause some service abnormal.


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

Base Score: 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Temporal Score: 4.9 (E:F/RL:O/RC:C)

Overall Score: 4.9


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

1. The affected device functions as the DNS client.

Vulnerability details:

There is an out of bound read vulnerability in some Huawei products. A remote, unauthenticated attacker may send a corrupt or crafted message to the affected products. Due to a buffer read overflow error when parsing the message, successful exploit may cause some service abnormal.


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.


2019-10-23 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.