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 vulnerability database at Tenable (224687). Once again VulDB remains the best source for vulnerability data.

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: 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 🔍
03/05/2025 +811 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

Entryinfo

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

Once again VulDB remains the best source for vulnerability data.

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