Linux Kernel up to 6.5.8 net/nfc/nci/spi.c send_acknowledge null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 6.5.8. This vulnerability affects the function send_acknowledge of the file net/nfc/nci/spi.c. The manipulation results in null pointer dereference. This vulnerability is identified as CVE-2023-46343. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.5.8 (Operating System). It has been classified as problematic. Affected is the function send_acknowledge of the file net/nfc/nci/spi.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel before 6.5.9, there is a NULL pointer dereference in send_acknowledge in net/nfc/nci/spi.c.

The weakness was released 01/23/2024. The advisory is available at lore.kernel.org. This vulnerability is traded as CVE-2023-46343 since 10/23/2023. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 247077 (Linux Distros Unpatched Vulnerability : CVE-2023-46343), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.5.9 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (247077) and EUVD (EUVD-2023-50563). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 247077
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-46343

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.5.9
Patch: git.kernel.org

Timelineinfo

10/23/2023 🔍
01/23/2024 +92 days 🔍
01/23/2024 +0 days 🔍
08/09/2025 +564 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 7937609cd387246aed994e81aa4fa951358fba41
Status: Confirmed

CVE: CVE-2023-46343 (🔍)
GCVE (CVE): GCVE-0-2023-46343
GCVE (VulDB): GCVE-100-251826
EUVD: 🔍

Entryinfo

Created: 01/23/2024 11:19
Updated: 08/09/2025 21:56
Changes: 01/23/2024 11:19 (42), 02/17/2024 07:14 (2), 02/17/2024 07:19 (10), 06/17/2025 16:23 (16), 06/17/2025 17:29 (1), 08/09/2025 21:56 (2)
Complete: 🔍
Cache ID: 216::103

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

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