Realtek USB Driver API buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability was found in Realtek USB Driver (Hardware Driver Software) (version now known). It has been declared as critical. This vulnerability affects some unknown processing of the component API. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.

The weakness was published 06/20/2022. The advisory is available at twcert.org.tw. This vulnerability was named CVE-2022-21742 since 11/19/2021. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (TWCERT/CC): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/19/2021 🔍
06/20/2022 +212 days 🔍
06/20/2022 +0 days 🔍
06/20/2022 +0 days 🔍

Sourcesinfo

Advisory: twcert.org.tw
Status: Not defined

CVE: CVE-2022-21742 (🔍)

Entryinfo

Created: 06/20/2022 14:33
Changes: 06/20/2022 14:33 (48)
Complete: 🔍

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