Linux Kernel NFC net/nfc/core.c use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel. This issue affects some unknown processing of the file net/nfc/core.c of the component NFC. The manipulation leads to use after free. This vulnerability is traded as CVE-2022-1974. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (affected version not known). It has been rated as critical. This issue affects some unknown functionality of the file net/nfc/core.c of the component NFC. 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 summary by CVE is:

A use-after-free flaw was found in the Linux kernel's NFC core functionality due to a race condition between kobject creation and delete. This vulnerability allows a local attacker with CAP_NET_ADMIN privilege to leak kernel information.

The weakness was shared 08/31/2022 as da5c0f119203ad9728920456a0f52a6d850c01cd. The advisory is shared at github.com. The identification of this vulnerability is CVE-2022-1974 since 06/01/2022. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 239841 (TencentOS Server 4: kernel (TSSA-2024:0960)), which helps to determine the existence of the flaw in a target environment.

Applying the patch da5c0f119203ad9728920456a0f52a6d850c01cd is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (239841). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 239841
Nessus Name: TencentOS Server 4: kernel (TSSA-2024:0960)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: da5c0f119203ad9728920456a0f52a6d850c01cd

Timelineinfo

06/01/2022 🔍
08/31/2022 +91 days 🔍
08/31/2022 +0 days 🔍
06/19/2025 +1023 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: da5c0f119203ad9728920456a0f52a6d850c01cd
Status: Confirmed

CVE: CVE-2022-1974 (🔍)
GCVE (CVE): GCVE-0-2022-1974
GCVE (VulDB): GCVE-100-207629

Entryinfo

Created: 08/31/2022 22:37
Updated: 06/19/2025 20:57
Changes: 08/31/2022 22:37 (43), 10/10/2022 11:38 (11), 06/19/2025 20:57 (20)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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