VDB-200318 · CVE-2022-1734 · GCVE-0-2022-1734

Linux Kernel Cleanup main.c nfcmrvl_nci_unregister_dev 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as critical. This affects the function nfcmrvl_nci_unregister_dev of the file drivers/nfc/nfcmrvl/main.c of the component Cleanup Handler. Such manipulation leads to use after free. This vulnerability is listed as CVE-2022-1734. There is no available exploit. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (version now known) and classified as critical. Affected by this issue is the function nfcmrvl_nci_unregister_dev of the file drivers/nfc/nfcmrvl/main.c of the component Cleanup Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was presented 05/19/2022 as d270453a0d9ec10bb8a802a142fb1b3601a83098. The advisory is available at github.com. This vulnerability is handled as CVE-2022-1734 since 05/16/2022. Technical details are known, but there is no available exploit.

Applying the patch d270453a0d9ec10bb8a802a142fb1b3601a83098 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: No
Local: No
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d270453a0d9ec10bb8a802a142fb1b3601a83098

Timelineinfo

05/16/2022 🔍
05/19/2022 +3 days 🔍
05/19/2022 +0 days 🔍
05/26/2022 +7 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: d270453a0d9ec10bb8a802a142fb1b3601a83098
Status: Confirmed

CVE: CVE-2022-1734 (🔍)
GCVE (CVE): GCVE-0-2022-1734
GCVE (VulDB): GCVE-100-200318

Entryinfo

Created: 05/19/2022 06:54
Updated: 05/26/2022 09:17
Changes: 05/19/2022 06:54 (43), 05/26/2022 09:17 (1)
Complete: 🔍
Cache ID: 216::103