LG Mobile Devices 8.0/8.1/9.0 USB laf Gadget use after free

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CVSS Meta Temp Score
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CTI Interest Score
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5.5$5k-$25k0.00

A vulnerability was found in LG Mobile Devices 8.0/8.1/9.0 (Smartphone Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the component USB laf Gadget. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-416. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on LG mobile devices with Android OS 8.0, 8.1, 9.0, and 10 software. The USB laf gadget has a use-after-free. The LG ID is LVE-SMP-200031 (February 2021).

The weakness was presented 02/04/2021. The advisory is available at lgsecurity.lge.com. This vulnerability was named CVE-2021-26689 since 02/04/2021. The attack can only be done within the local network. The successful exploitation needs a single authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/23/2021).

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

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VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-416
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

02/04/2021 Advisory disclosed
02/04/2021 +0 days CVE assigned
02/04/2021 +0 days VulDB entry created
02/23/2021 +19 days VulDB last update

Sourcesinfoedit

Advisory: lgsecurity.lge.com
Status: Confirmed

CVE: CVE-2021-26689 (🔒)

Entryinfoedit

Created: 02/04/2021 06:52 PM
Updated: 02/23/2021 03:05 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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