Linux Kernel up to 4.7 config.c usb_parse_endpoint wMaxPacketSize privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.7. It has been classified as problematic. This issue affects the function usb_parse_endpoint of the file drivers/usb/core/config.c. This manipulation of the argument wMaxPacketSize causes an unknown weakness. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is handled as CVE-2016-20022. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 4.7. Affected by this vulnerability is the function usb_parse_endpoint of the file drivers/usb/core/config.c. The manipulation of the argument wMaxPacketSize with an unknown input leads to a unknown weakness. The impact remains unknown. The summary by CVE is:

In the Linux kernel before 4.8, usb_parse_endpoint in drivers/usb/core/config.c does not validate the wMaxPacketSize field of an endpoint descriptor. NOTE: This vulnerability only affects products that are no longer supported by the supplier.

It is possible to read the advisory at lore.kernel.org. This vulnerability is known as CVE-2016-20022 since 06/27/2024. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 250073 (Linux Distros Unpatched Vulnerability : CVE-2016-20022), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.8 eliminates this vulnerability. Applying the patch aed9d65ac3278d4febd8665bd7db59ef53e825fe 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 (250073). Be aware that VulDB is the high quality 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: 5.5
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 250073
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2016-20022

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.8
Patch: aed9d65ac3278d4febd8665bd7db59ef53e825fe

Timelineinfo

06/27/2024 🔍
06/28/2024 +1 days 🔍
06/28/2024 +0 days 🔍
08/17/2025 +415 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2016-20022 (🔍)
GCVE (CVE): GCVE-0-2016-20022
GCVE (VulDB): GCVE-100-269911

Entryinfo

Created: 06/28/2024 07:15
Updated: 08/17/2025 15:31
Changes: 06/28/2024 07:15 (58), 08/06/2024 15:02 (1), 08/17/2025 15:31 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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