CVE-2021-33625: Buffer Overflow
First published: Thu Feb 03 2022(Updated: )
An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Insyde InsydeH2O UEFI BIOS | >=5.1<5.16.23 | |
| Insyde InsydeH2O UEFI BIOS | >=5.2<5.26.23 | |
| Insyde InsydeH2O UEFI BIOS | >=5.3<5.35.23 | |
| Insyde InsydeH2O UEFI BIOS | >=5.4<5.43.22 | |
| Insyde InsydeH2O UEFI BIOS | >=5.5<5.51.22 | |
| NetApp FAS/AFF BIOS | ||
| Siemens Ruggedcom APE1808 | ||
| Siemens Ruggedcom APE1808 Firmware | ||
| Siemens Simatic Field PG M5 | ||
| Siemens Simatic Field PG M5 | ||
| siemens simatic ipc127e firmware | ||
| siemens simatic ipc127e | ||
| Siemens Simatic ITP1000 | ||
| Siemens Simatic ITP1000 Firmware | ||
| Siemens Simatic IPC277G | ||
| Siemens Simatic IPC277G | ||
| Siemens Simatic IPC227G | ||
| Siemens Simatic IPC227G Firmware | ||
| Siemens Simatic IPC327G Firmware | ||
| Siemens Simatic IPC327G Firmware | ||
| Siemens Simatic IPC377G | ||
| Siemens Simatic IPC377G | ||
| Siemens Simatic IPC427E Firmware | ||
| Siemens Simatic IPC427E Firmware | ||
| Siemens Simatic IPC477E Firmware | ||
| Siemens Simatic IPC477E Firmware | ||
| Siemens Simatic IPC477E Pro | ||
| Siemens Simatic IPC477E Firmware | ||
| 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 field pg m6 firmware | ||
| siemens simatic field pg m6 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-33625?
CVE-2021-33625 is an issue in Kernel 5.x in Insyde InsydeH2O that affects HddPassword and allows the use of SMRAM, MMIO, or OS kernel addresses.
What software versions are affected by CVE-2021-33625?
CVE-2021-33625 affects versions 5.1 to 5.51.22 of Insyde InsydeH2O.
What is the severity of CVE-2021-33625?
CVE-2021-33625 has a severity score of 7.5 (High).
How can I fix CVE-2021-33625?
To fix CVE-2021-33625, update Insyde InsydeH2O to a version beyond 5.51.22.
Where can I find more information about CVE-2021-33625?
You can find more information about CVE-2021-33625 in the following references: [Siemens CERT-SSA-306654](https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf), [Netapp Advisory NTAP-20220222-0004](https://security.netapp.com/advisory/ntap-20220222-0004/), [Insyde Security Pledge](https://www.insyde.com/security-pledge).
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/insyde
- canonical/insyde insydeh2o uefi bios
- version/insyde insydeh2o uefi bios/5.1
- version/insyde insydeh2o uefi bios/5.2
- version/insyde insydeh2o uefi bios/5.3
- version/insyde insydeh2o uefi bios/5.4
- version/insyde insydeh2o uefi bios/5.5
- vendor/netapp
- canonical/netapp fas/aff bios
- vendor/siemens
- canonical/siemens ruggedcom ape1808
- canonical/siemens ruggedcom ape1808 firmware
- canonical/siemens simatic field pg m5
- canonical/siemens simatic ipc127e firmware
- canonical/siemens simatic ipc127e
- canonical/siemens simatic itp1000
- canonical/siemens simatic itp1000 firmware
- canonical/siemens simatic ipc277g
- canonical/siemens simatic ipc227g
- canonical/siemens simatic ipc227g firmware
- canonical/siemens simatic ipc327g firmware
- canonical/siemens simatic ipc377g
- canonical/siemens simatic ipc427e firmware
- canonical/siemens simatic ipc477e firmware
- canonical/siemens simatic ipc477e pro
- canonical/siemens simatic ipc627e firmware
- canonical/siemens simatic ipc627e
- canonical/siemens simatic ipc647e firmware
- canonical/siemens simatic ipc647e
- canonical/siemens simatic ipc677e firmware
- canonical/siemens simatic ipc677e
- canonical/siemens simatic ipc847e firmware
- canonical/siemens simatic ipc847e
- canonical/siemens simatic field pg m6 firmware
- canonical/siemens simatic field pg m6