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Security Advisory - Two Integer Overflow Vulnerabilities in LDAP of Some Huawei Products

  • SA No:huawei-sa-20200115-01-ldap
  • Initial Release Date: Jan 15, 2020
  • Last Release Date: Jan 22, 2020

There is an integer overflow vulnerability in LDAP client of some Huawei products. Due to insufficient input validation, a remote attacker could exploit this vulnerability by sending malformed packets to the target devices. Successful exploit could cause the affected system crash. (Vulnerability ID: HWPSIRT-2017-11033)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-19413.

There is an integer overflow access vulnerability in LDAP server of some Huawei products. A remote attacker could exploit this vulnerability by sending malformed packets to the target devices. Successful exploit could cause the affected system crash. (Vulnerability ID: HWPSIRT-2017-11034)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-19414.

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

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-ldap-en


Product Name

Affected Version

Resolved Product and Version

DBS3900 TDD LTE

V100R003C00

Upgrade to V100R005C00SPC200

V100R004C10

DP300

V500R002C00

V500R002C00SPCb00

RP200

V500R002C00SPC200

Upgrade to TEX0 V600R006C00SPC500

V600R006C00

TEX0 V600R006C00SPC500

TE30

V100R001C10

Upgrade to TEX0 V600R006C00SPC500

V600R006C00

TEX0 V600R006C00SPC500

TE40

V600R006C00

TEX0 V600R006C00SPC500

TE50

V600R006C00

TEX0 V600R006C00SPC500

TE60

V100R001C10

Upgrade to TEX0 V600R006C00SPC500

V500R002C00

V600R006C00

TEX0 V600R006C00SPC500


Successful exploit could cause the affected system crash.


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

HWPSIRT-2017-11033 and HWPSIRT-2017-11034:

Base Score: 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Temporal Score: 5.5 (E:F/RL:O/RC:C)


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

1. The attacker could gain access to the network.

Vulnerability details:

Due to insufficient input validation, a remote attacker could exploit this vulnerability by sending malformed packets to the target devices. Successful exploit could cause the affected system crash.


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.

These vulnerabilities were discovered by Huawei internal tester.


2020-01-22 V1.1 UPDATED Updated the affected version and fix version information
2020-01-15 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.

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