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Security Advisory - DoS Vulnerability in TLS of Some Huawei Products

  • SA No:huawei-sa-20170705-01-tls
  • Initial Release Date: Jul 05, 2017
  • Last Release Date: Jul 05, 2017

There is a input validation vulnerability in some huawei products when handle TLS and DTLS handshake with certificate. Due to the insufficient validation of received PKI certificates, remote attackers could exploit this vulnerability to crash the TLS module. (Vulnerability ID: HWPSIRT-2017-03121)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-8213.

Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

Product Name

Affected Version

Resolved Product and Version



Upgrade to V500R002C00SPCc00











Successful exploitation of the vulnerability allows attackers to crash TLS module.

The vulnerability classification has been performed by using the CVSSv3 scoring system (

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)

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

The attacker gains access to the device network.

Vulnerability details:

A remote attacker could send abnormal TLS and DTLS certificates to the device to crash the TLS module.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at

This vulnerability was discovered by Huawei internal tester.

2017-07-05 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.

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