insyde Kernel FvbServicesRuntimeDxe Driver buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in insyde Kernel and classified as critical. The affected element is an unknown function of the component FvbServicesRuntimeDxe Driver. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2022-31243. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in insyde Kernel (the affected version unknown). This affects an unknown part of the component FvbServicesRuntimeDxe Driver. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Update description and links DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption through a TOCTOU attack.. "DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in Kernel 5.2: 05.27.21. Kernel 5.3: 05.36.21. Kernel 5.4: 05.44.21. Kernel 5.5: 05.52.21 https://www.insyde.com/security-pledge/SA-2022044

The weakness was published 11/15/2022. It is possible to read the advisory at insyde.com. This vulnerability is uniquely identified as CVE-2022-31243 since 05/19/2022. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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

05/19/2022 🔍
11/15/2022 +180 days 🔍
11/15/2022 +0 days 🔍
05/01/2025 +898 days 🔍

Sourcesinfo

Advisory: insyde.com
Status: Confirmed

CVE: CVE-2022-31243 (🔍)
GCVE (CVE): GCVE-0-2022-31243
GCVE (VulDB): GCVE-100-213615

Entryinfo

Created: 11/15/2022 08:47
Updated: 05/01/2025 04:42
Changes: 11/15/2022 08:47 (38), 12/18/2022 09:00 (12), 05/01/2025 04:42 (15)
Complete: 🔍
Cache ID: 216::103

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