Linux Kernel up to 5.16.12 se.c st21nfca_connectivity_event_received length buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.16.12 and classified as critical. The impacted element is the function st21nfca_connectivity_event_received of the file drivers/nfc/st21nfca/se.c. The manipulation of the argument length leads to buffer overflow. This vulnerability is uniquely identified as CVE-2022-26490. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.16.12 (Operating System). This issue affects the function st21nfca_connectivity_event_received of the file drivers/nfc/st21nfca/se.c. The manipulation of the argument length with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 03/06/2022 as 4fbcc1a4cb20fe26ad0225679c536c80f1648221. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2022-26490 since 03/06/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236670 (Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 4fbcc1a4cb20fe26ad0225679c536c80f1648221 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 (236670). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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: 236670
Nessus Name: Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 4fbcc1a4cb20fe26ad0225679c536c80f1648221

Timelineinfo

03/06/2022 🔍
03/06/2022 +0 days 🔍
03/06/2022 +0 days 🔍
06/25/2025 +1207 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 4fbcc1a4cb20fe26ad0225679c536c80f1648221
Status: Confirmed

CVE: CVE-2022-26490 (🔍)
GCVE (CVE): GCVE-0-2022-26490
GCVE (VulDB): GCVE-100-194267

Entryinfo

Created: 03/06/2022 09:12
Updated: 06/25/2025 23:29
Changes: 03/06/2022 09:12 (44), 03/09/2022 11:04 (1), 05/18/2025 18:59 (16), 06/25/2025 23:29 (19)
Complete: 🔍
Cache ID: 216::103

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

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