InsydeH2O up to 05.15.10/05.25.10/05.34.10/05.42.10 SMI SdLegacySmm CommBuffer input validation

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

Summaryinfo

A vulnerability classified as critical was found in InsydeH2O up to 05.15.10/05.25.10/05.34.10/05.42.10. Affected by this vulnerability is the function SdLegacySmm of the component SMI Handler. Such manipulation of the argument CommBuffer leads to input validation. This vulnerability is listed as CVE-2020-5956. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in InsydeH2O up to 05.15.10/05.25.10/05.34.10/05.42.10. It has been rated as critical. Affected by this issue is the function SdLegacySmm of the component SMI Handler. The manipulation of the argument CommBuffer with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was presented 01/06/2022. The advisory is shared for download at insyde.com. This vulnerability is handled as CVE-2020-5956 since 01/06/2020. There are known technical details, but no exploit is available.

Upgrading to version 05.15.11, 05.25.11, 05.34.11 or 05.42.11 eliminates this vulnerability.

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Productinfo

Name

Version

License

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

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: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: InsydeH2O 05.15.11/05.25.11/05.34.11/05.42.11

Timelineinfo

01/06/2020 🔍
01/06/2022 +731 days 🔍
01/06/2022 +0 days 🔍
01/09/2022 +3 days 🔍

Sourcesinfo

Advisory: insyde.com
Status: Confirmed

CVE: CVE-2020-5956 (🔍)
GCVE (CVE): GCVE-0-2020-5956
GCVE (VulDB): GCVE-100-189728

Entryinfo

Created: 01/06/2022 07:08
Updated: 01/09/2022 09:11
Changes: 01/06/2022 07:08 (40), 01/09/2022 09:11 (1)
Complete: 🔍
Cache ID: 216::103

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