LG Mobile Device up to 8.1 TZ Trusted Application input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in LG Mobile Device 7.0/7.1/7.2/8.0/8.1. This issue affects some unknown processing of the component TZ Trusted Application. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2019-20776. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in LG Mobile Device 7.0/7.1/7.2/8.0/8.1 (Smartphone Operating System). This issue affects some unknown functionality of the component TZ Trusted Application. 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:

An issue was discovered on LG mobile devices with Android OS 7.0, 7.1, 7.2, 8.0, and 8.1 software. A TZ trusted application can crash via crafted input. The LG ID is LVE-SMP-190005 (July 2019).

The weakness was disclosed 04/17/2020 (Website). The advisory is shared at lgsecurity.lge.com. The identification of this vulnerability is CVE-2019-20776 since 04/17/2020. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/18/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-154030, VDB-154031, VDB-154032 and VDB-154033 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/17/2020 🔍
04/17/2020 +0 days 🔍
04/18/2020 +1 days 🔍
10/10/2020 +175 days 🔍

Sourcesinfo

Advisory: lgsecurity.lge.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-20776 (🔍)
GCVE (CVE): GCVE-0-2019-20776
GCVE (VulDB): GCVE-100-154037
See also: 🔍

Entryinfo

Created: 04/18/2020 08:46
Updated: 10/10/2020 09:31
Changes: 04/18/2020 08:46 (38), 04/18/2020 08:51 (18), 10/10/2020 09:31 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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