VDB-207626 · CVE-2022-1975 · GCVE-0-2022-1975

Linux Kernel NFC /net/nfc/netlink.c nfc_genl_fw_download_done uncaught exception

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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this issue is the function nfc_genl_fw_download_done of the file /net/nfc/netlink.c of the component NFC. Such manipulation leads to uncaught exception. This vulnerability is documented as CVE-2022-1975. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate 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 nfc_genl_fw_download_done of the file /net/nfc/netlink.c of the component NFC. The manipulation with an unknown input leads to a uncaught exception vulnerability. Using CWE to declare the problem leads to CWE-248. An exception is thrown from a function, but it is not caught. Impacted is availability. CVE summarizes:

There is a sleep-in-atomic bug in /net/nfc/netlink.c that allows an attacker to crash the Linux kernel by simulating a nfc device from user-space.

The weakness was released 08/31/2022 as 4071bf121d59944d5cd2238de0642f3d7995a997. The advisory is available at github.com. This vulnerability is handled as CVE-2022-1975 since 06/01/2022. Technical details are known, but there is no available exploit.

Applying the patch 4071bf121d59944d5cd2238de0642f3d7995a997 is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

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

Exploitinginfo

Class: Uncaught exception
CWE: CWE-248
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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: 4071bf121d59944d5cd2238de0642f3d7995a997

Timelineinfo

06/01/2022 🔍
08/31/2022 +91 days 🔍
08/31/2022 +0 days 🔍
10/10/2022 +40 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 4071bf121d59944d5cd2238de0642f3d7995a997
Status: Confirmed

CVE: CVE-2022-1975 (🔍)
GCVE (CVE): GCVE-0-2022-1975
GCVE (VulDB): GCVE-100-207626

Entryinfo

Created: 08/31/2022 22:35
Updated: 10/10/2022 11:16
Changes: 08/31/2022 22:35 (44), 10/10/2022 11:16 (11)
Complete: 🔍
Cache ID: 216::103