Lenovo ThinkPad SMI input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Lenovo ThinkPad. Affected is an unknown function of the component SMI Handler. The manipulation results in input validation. This vulnerability is identified as CVE-2021-3843. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Lenovo ThinkPad (affected version not known). Affected is some unknown functionality of the component SMI Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 11/13/2021 as LEN-72619. The advisory is shared for download at support.lenovo.com. This vulnerability is traded as CVE-2021-3843 since 09/30/2021. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Lenovo Group Ltd.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/30/2021 🔍
11/13/2021 +44 days 🔍
11/13/2021 +0 days 🔍
11/16/2021 +3 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: LEN-72619
Status: Confirmed

CVE: CVE-2021-3843 (🔍)
GCVE (CVE): GCVE-0-2021-3843
GCVE (VulDB): GCVE-100-186636

Entryinfo

Created: 11/13/2021 10:33
Updated: 11/16/2021 15:24
Changes: 11/13/2021 10:33 (46), 11/16/2021 15:24 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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