Google Android 11.0 NFC out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$5k-$25k	0.00

A vulnerability was found in Google Android 11.0 (Smartphone Operating System). It has been rated as critical. This issue affects an unknown functionality of the component NFC. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-787. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In NFC, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges and a Firmware compromise needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-139424089

The weakness was presented 09/18/2020 (Website). It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2020-0350 since 10/17/2019. The exploitation is known to be difficult. Attacking locally is a requirement. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/19/2020). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

See 161398, 161399, 161402 and 161403 for similar entries.

Productinfoedit

Type

Smartphone Operating System

Vendor

Google

Name

Android

CPE 2.3infoedit

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CPE 2.2infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔒

CVSSv2infoedit

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🔍	🔍	🔍	🔍	🔍	🔍
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-787
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

10/17/2019 CVE assigned
09/18/2020 +337 days Advisory disclosed
09/19/2020 +1 days VulDB entry created
09/19/2020 +0 days VulDB last update

Sourcesinfoedit

Vendor: https://www.google.com/

Advisory: source.android.com
Status: Not defined

CVE: CVE-2020-0350 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔒

Entryinfoedit