VDB-210283 · CVE-2022-39847 · EUVD-2022-42292

Samsung Smart Phone NFC Driver set_nft_pid/signal_handler use after free

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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Samsung Smart Phone and classified as critical. The impacted element is the function set_nft_pid/signal_handler of the component NFC Driver. This manipulation causes use after free. This vulnerability appears as CVE-2022-39847. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Samsung Smart Phone (Smartphone Operating System) (the affected version unknown). It has been declared as critical. Affected by this vulnerability is the function set_nft_pid/signal_handler of the component NFC Driver. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Use after free vulnerability in set_nft_pid and signal_handler function of NFC driver prior to SMR Oct-2022 Release 1 allows attackers to perform malicious actions.

The weakness was presented 10/07/2022. It is possible to read the advisory at security.samsungmobile.com. This vulnerability is known as CVE-2022-39847 since 09/05/2022. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-42292). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Samsung

Name

Smart Phone

License

commercial

Website

Vendor: https://www.samsung.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

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

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 4.9
CNA Vector (Samsung Mobile): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/05/2022 🔍
10/07/2022 +32 days 🔍
10/07/2022 +0 days 🔍
07/03/2026 +1365 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2022-39847 (🔍)
GCVE (CVE): GCVE-0-2022-39847
GCVE (VulDB): GCVE-100-210283
EUVD: 🔍

Entryinfo

Created: 10/07/2022 21:29
Updated: 07/03/2026 22:13
Changes: 10/07/2022 21:29 (50), 10/31/2022 08:36 (11), 07/03/2026 22:13 (15)
Complete: 🔍
Cache ID: 216::103

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