Linux Kernel up to 5.16-rc6 netvsc_drv.c netvsc_get_ethtool_stats 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 described as problematic has been identified in Linux Kernel up to 5.16-rc6. Impacted is the function netvsc_get_ethtool_stats of the file drivers/net/hyperv/netvsc_drv.c. Executing a manipulation can lead to null pointer dereference. This vulnerability is handled as CVE-2022-3107. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.16-rc6 (Operating System). It has been declared as problematic. This vulnerability affects the function netvsc_get_ethtool_stats of the file drivers/net/hyperv/netvsc_drv.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in the Linux kernel through 5.16-rc6. netvsc_get_ethtool_stats in drivers/net/hyperv/netvsc_drv.c lacks check of the return value of kvmalloc_array() and will cause the null pointer dereference.

The weakness was released 12/15/2022. The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2022-3107 since 09/02/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 224687 (Linux Distros Unpatched Vulnerability : CVE-2022-3107), 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 git.kernel.org.

The vulnerability is also documented in the databases at Tenable (224687) and EUVD (EUVD-2022-42534). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

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: 224687
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-3107

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/02/2022 🔍
12/15/2022 +104 days 🔍
12/15/2022 +0 days 🔍
07/09/2026 +1302 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2022-3107 (🔍)
GCVE (CVE): GCVE-0-2022-3107
GCVE (VulDB): GCVE-100-215836
EUVD: 🔍

Entryinfo

Created: 12/15/2022 01:00
Updated: 07/09/2026 12:45
Changes: 12/15/2022 01:00 (42), 01/12/2023 18:47 (10), 03/05/2025 13:00 (17), 07/09/2026 12:45 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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