This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy

Security Advisory - Denial of Service Vulnerability in Several Smartphones

  • SA No:huawei-sa-20200102-03-smartphone
  • Initial Release Date: Jan 02, 2020
  • Last Release Date: Sep 02, 2020

There is a denial of service vulnerability in several smartphones. The system does not properly check the status of certain module during certain operations, an attacker should trick the user into installing a malicious application, successful exploit could cause reboot of the smartphone. (Vulnerability ID: HWPSIRT-2019-06133)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-1785.

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-20200102-03-smartphone-en


Product Name

Affected Version

Resolved Product and Version

BLA-L09C

Versions earlier than 9.1.0.321(C605E4R1P13T8)

9.1.0.321(C605E4R1P13T8)

Versions earlier than 9.1.0.330(C432E6R1P12T8)

9.1.0.330(C432E6R1P12T8)

BLA-L29C

Versions earlier than 9.1.0.321(C636E4R1P14T8)

9.1.0.321(C636E4R1P14T8)

Versions earlier than 9.1.0.330(C432E6R1P12T8)

9.1.0.330(C432E6R1P12T8)

Berkeley-AL20

Versions earlier than 9.1.0.333(C00E333R2P1T8)

9.1.0.333(C00E333R2P1T8)

Berkeley-L09

Versions earlier than 9.1.0.350(C10E3R1P14T8)

9.1.0.350(C10E3R1P14T8)

Versions earlier than 9.1.0.350(C636E4R1P13T8)

9.1.0.350(C636E4R1P13T8)

Versions earlier than 9.1.0.351(C432E5R1P13T8)

9.1.0.351(C432E5R1P13T8)

Columbia-L29D

Versions earlier than 9.1.0.350(C10E5R1P14T8)

9.1.0.350(C10E5R1P14T8)

Versions earlier than 9.1.0.350(C185E3R1P12T8)

9.1.0.350(C185E3R1P12T8)

Versions earlier than 9.1.0.350(C461E3R1P11T8)

9.1.0.350(C461E3R1P11T8)

Versions earlier than 9.1.0.350(C636E3R1P13T8)

9.1.0.350(C636E3R1P13T8)

Versions earlier than 9.1.0.351(C432E5R1P13T8)

9.1.0.351(C432E5R1P13T8)

Cornell-AL00A

Versions earlier than 9.1.0.333(C00E333R1P1T8)

9.1.0.333(C00E333R1P1T8)

Cornell-L29A

Versions earlier than 9.1.0.360(C432E1R1P9)

9.1.0.360(C432E1R1P9)

Versions earlier than 9.1.0.361(C185E1R1P9T8)

9.1.0.361(C185E1R1P9T8)

Versions earlier than 9.1.0.361(C636E3R1P12T8)

9.1.0.361(C636E3R1P12T8)

Versions earlier than 9.1.0.362(C461E1R1P9T8)

9.1.0.362(C461E1R1P9T8)

Cornell-TL10B

Versions earlier than 9.1.0.333(C01E333R1P1T8)

9.1.0.333(C01E333R1P1T8)

HUAWEI nova 2s

Versions earlier than 9.1.0.210(C00E110R2P9T8)

9.1.0.210(C00E110R2P9T8)

HUAWEI nova 3

Versions earlier than 9.1.0.333(C00E333R1P1T8)

9.1.0.333(C00E333R1P1T8)

HUAWEI nova 4

Versions earlier than 9.1.0.225(C636E1R4P1)

9.1.0.225(C636E1R4P1)

Versions earlier than 9.1.0.253(C01E253R2P1)

9.1.0.253(C01E253R2P1)

Paris-L21B

Versions earlier than 9.1.0.349(C432E1R1P2T8)

9.1.0.349(C432E1R1P2T8)

Paris-L21MEB

Versions earlier than 9.1.0.355(C185E4R1P3T8)

9.1.0.355(C185E4R1P3T8)

Paris-L29B

Versions earlier than 9.1.0.349(C636E1R1P3T8)

9.1.0.349(C636E1R1P3T8)



Successful exploit could cause reboot of the smartphone.


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

Base Score: 5.5 (AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Temporal Score: 5.1 (E:F/RL:O/RC:C)

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

An attacker should trick the user into installing a malicious application.

Vulnerability details:

The system does not properly check the status of certain module during certain operations, an attacker should trick the user into installing a malicious application, successful exploit could cause reboot of the smartphone.


The product that supports automatic update will receive a system update prompt. You can install the update to fix the vulnerability.

This vulnerability was reported to Huawei PSIRT by Wei Junyi from SONIC Lab, Fudan University. Huawei would like to thank this researcher for working with us and coordinated vulnerability disclosure to protect our customers.


2020-09-02 V1.1 UPDATED Updated the "Software Versions and Fixes" section;

2020-01-02 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.