Insyde InsydeH2O SMM EFI_BOOT_SERVICES/EFI_RUNTIME_SERVICES allocation of resources

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

Summaryinfo

A vulnerability was found in Insyde InsydeH2O. It has been declared as problematic. This affects an unknown function of the component SMM. The manipulation of the argument EFI_BOOT_SERVICES/EFI_RUNTIME_SERVICES results in allocation of resources. This vulnerability is identified as CVE-2021-41841. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Insyde InsydeH2O (version now known). It has been classified as problematic. Affected is some unknown processing of the component SMM. The manipulation of the argument EFI_BOOT_SERVICES/EFI_RUNTIME_SERVICES with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.

The weakness was released 02/03/2022. The advisory is shared for download at insyde.com. This vulnerability is traded as CVE-2021-41841 since 10/01/2021. There are known technical details, but no exploit is available.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: 🔍

Timelineinfo

10/01/2021 🔍
02/03/2022 +125 days 🔍
02/03/2022 +0 days 🔍
11/04/2025 +1370 days 🔍

Sourcesinfo

Advisory: insyde.com
Status: Confirmed

CVE: CVE-2021-41841 (🔍)
GCVE (CVE): GCVE-0-2021-41841
GCVE (VulDB): GCVE-100-192156

Entryinfo

Created: 02/03/2022 08:17
Updated: 11/04/2025 23:16
Changes: 02/03/2022 08:17 (38), 02/05/2022 07:24 (1), 11/04/2025 23:16 (34)
Complete: 🔍
Cache ID: 216:59C:103

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