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Security Advisory - Denial of Service Vulnerability in Several Smartphones

  • SA No:huawei-sa-20200102-03-smartphone
  • Initial Release Date: 2020-01-02
  • Last Release Date: 2020-09-02

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.

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