CVE-2021-42554: High severity Insyde InsydeH2O vulnerability

Published Feb 3, 2022
·
Updated

An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Affected Software

66 affected components
Insyde InsydeH2O>=5.0<5.08.42
Insyde InsydeH2O>=5.1<5.16.42
Insyde InsydeH2O>=5.2<5.26.42
Insyde InsydeH2O>=5.3<5.35.42
Insyde InsydeH2O>=5.4<5.42.51
Insyde InsydeH2O>=5.5<5.50.51
Siemens Simatic Field Pg M5 Firmware
Siemens Simatic Field Pg M5
Siemens Simatic Field Pg M6 Firmware
Siemens SIMATIC Field PG M6
Siemens Simatic Ipc127e Firmware
Siemens Simatic Ipc127e
Siemens Simatic Ipc227g Firmware
Siemens Simatic Ipc227g
Siemens Simatic Ipc277g Firmware
Siemens Simatic Ipc277g
Siemens Simatic Ipc327g Firmware
Siemens Simatic Ipc327g
Siemens Simatic Ipc377g Firmware
Siemens Simatic Ipc377g
Siemens Simatic Ipc427e Firmware
Siemens Simatic Ipc427e
Siemens Simatic Ipc477e Firmware
Siemens Simatic Ipc477e
Siemens Simatic Ipc627e Firmware
Siemens Simatic Ipc627e
Siemens Simatic Ipc647e Firmware
Siemens Simatic Ipc647e
Siemens Simatic Ipc677e Firmware
Siemens Simatic Ipc677e
Siemens Simatic Ipc847e Firmware
Siemens Simatic Ipc847e
Siemens Simatic Itp1000 Firmware
Siemens SIMATIC ITP1000
Siemens Ruggedcom Ape1808 Firmware
Siemens Ruggedcom Ape1808
All of the following
Siemens Simatic Field Pg M5 Firmware
Siemens Simatic Field Pg M5
All of the following
Siemens Simatic Field Pg M6 Firmware
Siemens SIMATIC Field PG M6
All of the following
Siemens Simatic Ipc127e Firmware
Siemens Simatic Ipc127e
All of the following
Siemens Simatic Ipc227g Firmware
Siemens Simatic Ipc227g
All of the following
Siemens Simatic Ipc277g Firmware
Siemens Simatic Ipc277g
All of the following
Siemens Simatic Ipc327g Firmware
Siemens Simatic Ipc327g
All of the following
Siemens Simatic Ipc377g Firmware
Siemens Simatic Ipc377g
All of the following
Siemens Simatic Ipc427e Firmware
Siemens Simatic Ipc427e
All of the following
Siemens Simatic Ipc477e Firmware
Siemens Simatic Ipc477e
All of the following
Siemens Simatic Ipc627e Firmware
Siemens Simatic Ipc627e
All of the following
Siemens Simatic Ipc647e Firmware
Siemens Simatic Ipc647e
All of the following
Siemens Simatic Ipc677e Firmware
Siemens Simatic Ipc677e
All of the following
Siemens Simatic Ipc847e Firmware
Siemens Simatic Ipc847e
All of the following
Siemens Simatic Itp1000 Firmware
Siemens SIMATIC ITP1000
All of the following
Siemens Ruggedcom Ape1808 Firmware
Siemens Ruggedcom Ape1808

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.08.42
  2. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.16.42
  3. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.26.42
  4. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.35.42
  5. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.42.51
  6. Upgrade

    Upgrade Insyde InsydeH2O Kernel to a version that resolves this vulnerability.

    Fixed in 05.50.51

Event History

Feb 3, 2022
CVE Published
via MITRE·01:40 AM
Data Sourced
via MITRE·01:40 AM
Description
Data Sourced
via NVD·02:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is CVE-2021-42554?

CVE-2021-42554 is a vulnerability discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. It is an SMM memory corruption vulnerability in FvbServicesRuntimeDxe.

2

How severe is CVE-2021-42554?

CVE-2021-42554 has a severity rating of 8.2, which is considered high.

3

What software is affected by CVE-2021-42554?

Insyde InsydeH2O versions 5.0 to 5.5 are affected by CVE-2021-42554.

4

How can I fix CVE-2021-42554?

To fix CVE-2021-42554, it is recommended to update Insyde InsydeH2O to a version above 05.50.51, if available.

5

Where can I find more information about CVE-2021-42554?

You can find more information about CVE-2021-42554 in the following references: [1] [2] [3]

Contact

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