Huawei P8/P9 Lite/P9 TrustZone Driver input validation

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Huawei P8, P9 Lite and P9. Impacted is an unknown function of the component TrustZone Driver. The manipulation leads to input validation. This vulnerability is listed as CVE-2016-8762. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Huawei P8, P9 Lite and P9 (Smartphone Operating System) (version now known) and classified as problematic. This issue affects some unknown processing of the component TrustZone Driver. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The TrustZone driver in Huawei P9 phones with software Versions earlier than EVA-AL10C00B352 and P9 Lite with software VNS-L21C185B130 and earlier versions and P8 Lite with software ALE-L02C636B150 and earlier versions has an input validation vulnerability, which allows attackers to cause the system to restart.

The bug was discovered 11/23/2016. The weakness was presented 04/02/2017 (Website). It is possible to read the advisory at huawei.com. The identification of this vulnerability is CVE-2016-8762 since 10/18/2016. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 130 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94509†). See VDB-99204 and VDB-99205 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 2.8
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2016 🔍
11/23/2016 +36 days 🔍
11/24/2016 +1 days 🔍
04/02/2017 +129 days 🔍
04/02/2017 +0 days 🔍
04/03/2017 +1 days 🔍
11/24/2022 +2061 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: sa-20161123-01
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8762 (🔍)
GCVE (CVE): GCVE-0-2016-8762
GCVE (VulDB): GCVE-100-99203
SecurityFocus: 94509 - Multiple Huawei Products Local Multiple Security Vulnerabilities
OSVDB: - CVE-2016-8762 - Huawei - Multiple Products - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/03/2017 09:03
Updated: 11/24/2022 14:26
Changes: 04/03/2017 09:03 (60), 08/25/2020 09:03 (5), 11/24/2022 14:26 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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