VDB-206889 · CVE-2022-2873 · EUVD-2022-35105

Linux Kernel Intel iSMT SMBus Host Controller Driver i2c-ismt.c ismt_access buffer size

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6.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel. Affected by this issue is the function ismt_access of the file i2c-ismt.c of the component Intel iSMT SMBus Host Controller Driver. Performing a manipulation results in buffer size. This vulnerability is cataloged as CVE-2022-2873. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (the affected version is unknown). It has been classified as critical. This affects the function ismt_access of the file i2c-ismt.c of the component Intel iSMT SMBus Host Controller Driver. The manipulation with an unknown input leads to a buffer size vulnerability. CWE is classifying the issue as CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. This is going to have an impact on availability. The summary by CVE is:

An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system.

The weakness was shared 08/22/2022. The advisory is shared at lore.kernel.org. This vulnerability is uniquely identified as CVE-2022-2873 since 08/17/2022. 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 a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org.

The vulnerability is also documented in the databases at Tenable (239841) and EUVD (EUVD-2022-35105). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 6.5
VulDB Meta Temp Score: 6.2

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

CVSSv2info

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

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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

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: lore.kernel.org

Timelineinfo

08/17/2022 🔍
08/22/2022 +5 days 🔍
08/22/2022 +0 days 🔍
05/28/2026 +1374 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2022-2873 (🔍)
GCVE (CVE): GCVE-0-2022-2873
GCVE (VulDB): GCVE-100-206889
EUVD: 🔍

Entryinfo

Created: 08/22/2022 20:34
Updated: 05/28/2026 01:40
Changes: 08/22/2022 20:34 (41), 08/22/2022 20:35 (1), 06/19/2025 20:13 (16), 05/28/2026 01:40 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.