VDB-216200 · CVE-2022-47518 · Nessus 236642

Linux Kernel up to 6.0.10 WILC1000 Wireless Driver cfg80211.c wilc_wfi_cfg_parse_ch_attr heap-based overflow

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6.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.0.10. The affected element is the function wilc_wfi_cfg_parse_ch_attr of the file drivers/net/wireless/microchip/wilc1000/cfg80211.c of the component WILC1000 Wireless Driver. Such manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2022-47518. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.0.10 (Operating System). Affected by this issue is the function wilc_wfi_cfg_parse_ch_attr of the file drivers/net/wireless/microchip/wilc1000/cfg80211.c of the component WILC1000 Wireless Driver. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in the Linux kernel before 6.0.11. Missing validation of the number of channels in drivers/net/wireless/microchip/wilc1000/cfg80211.c in the WILC1000 wireless driver can trigger a heap-based buffer overflow when copying the list of operating channels from Wi-Fi management frames.

The weakness was published 12/18/2022. The advisory is shared for download at lore.kernel.org. This vulnerability is handled as CVE-2022-47518 since 12/18/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 236642 (Alibaba Cloud Linux 3 : 0042: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0042)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.11 eliminates this vulnerability. Applying the patch 0cdfa9e6f0915e3d243e2393bfa8a22e12d553b0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (236642). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

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: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

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: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 236642
Nessus Name: Alibaba Cloud Linux 3 : 0042: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0042)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.0.11
Patch: 0cdfa9e6f0915e3d243e2393bfa8a22e12d553b0

Timelineinfo

12/18/2022 🔍
12/18/2022 +0 days 🔍
12/18/2022 +0 days 🔍
05/19/2025 +883 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 0cdfa9e6f0915e3d243e2393bfa8a22e12d553b0
Status: Confirmed

CVE: CVE-2022-47518 (🔍)
GCVE (CVE): GCVE-0-2022-47518
GCVE (VulDB): GCVE-100-216200

Entryinfo

Created: 12/18/2022 15:31
Updated: 05/19/2025 08:05
Changes: 12/18/2022 15:31 (45), 01/15/2023 08:58 (1), 01/15/2023 09:02 (12), 04/18/2025 02:21 (16), 05/19/2025 08:05 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.