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Security Advisory - Three Vulnerabilities in Huawei GaussDB

  • SA No:huawei-sa-20171025-01-gaussdb
  • Initial Release Date: 2017-10-25
  • Last Release Date: 2017-11-10

There is a information leak vulnerability in libevent of Huawei GaussDB. Due to insufficient input validation, a remote attacker could exploit this vulnerability by sending a forged DNS response to an application using libevent. Successful exploit of the vulnerability could lead to reading data out of bounds on the heap, potentially disclosing a small amount of application memory. (Vulnerability ID: HWPSIRT-2017-05012)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-10195.

There is a DoS vulnerability in libevent of Huawei GaussDB. Due to insufficient input validation, a remote attacker could exploit this vulnerability by causing an application using libevent to parse a malformed IPv6 address. Successful exploit of the vulnerability could cause stack overflow and cause a crash. (Vulnerability ID: HWPSIRT-2017-05048)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-10196.

There is an out-of-bounds read vulnerability in libevent of Huawei GaussDB. Due to insufficient input validation, a remote attacker could exploit this vulnerability by causing an application using libevent to attempt resolving an empty hostname. Successful exploit of the vulnerability could cause out-of-bounds read and possibly cause a crash. (Vulnerability ID: HWPSIRT-2017-05049)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-10197.

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-20171025-01-gaussdb-en

Product Name

Affected Version

Resolved Product and Version

FusionSphere OpenStack

V100R005C10

Upgrade to V100R006C10SPC300

V100R006C00SPC102(NFV)

V100R006C10

V100R006C10SPC300

OceanStor Backup Software

V100R002C00

Upgrade to OceanStor BCManager V200R001C00SPC208

V200R001C00

OceanStor BCManager V200R001C00SPC208

HWPSIRT-2017-05012:

Successful exploit of the vulnerability could lead to reading data out of bounds on the heap, potentially disclosing a small amount of application memory.

HWPSIRT-2017-05048:

Successful exploit of the vulnerability could cause stack overflow and cause a crash.

HWPSIRT-2017-05049:

Successful exploit of the vulnerability could cause out-of-bounds read and possibly cause a crash.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
HWPSIRT-2017-05012:
Base Score: 3.7 (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Temporal Score: 3.5 (E:F/RL:O/RC:C)

HWPSIRT-2017-05048:
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)

HWPSIRT-2017-05049:
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)
HWPSIRT-2017-05012:
This vulnerability can be exploited only when the following conditions are present:
The attacker gains access to the target device network.
Vulnerability details:
Due to insufficient input validation, a remote attacker could exploit this vulnerability by sending a forged DNS response to an application using libevent. Successful exploit of the vulnerability could lead to reading data out of bounds on the heap, potentially disclosing a small amount of application memory.

HWPSIRT-2017-05048:
This vulnerability can be exploited only when the following conditions are present:
The attacker gains access to the target device network.
Vulnerability details:
Due to insufficient input validation, a remote attacker could exploit this vulnerability by causing an application using libevent to parse a malformed IPv6 address. Successful exploit of the vulnerability could cause stack overflow and cause a crash.

HWPSIRT-2017-05049:
This vulnerability can be exploited only when the following conditions are present:
The attacker gains access to the target device network.
Vulnerability details:
Due to insufficient input validation, a remote attacker could exploit this vulnerability by causing an application using libevent to attempt resolving an empty hostname. Successful exploit of the vulnerability could cause out-of-bounds read and possibly cause a 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.
2017-11-10 V1.1 UPDATE Update the affected product list

2017-10-25 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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