CVE-2021-3897
First published: Fri Apr 22 2022(Updated: )
An authentication bypass vulnerability was discovered in an internal service of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware during an that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.
Credit: psirt@lenovo.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lenovo Nextscale N1200 Enclosure Firmware | <fhet50b-2.90 | |
| Lenovo Nextscale N1200 Enclosure | ||
| Lenovo Thinkagile Hx Enclosure Certified Node Firmware | <tesm28b-1.21 | |
| Lenovo Thinkagile Hx Enclosure Certified Node | ||
| Lenovo Thinkagile Vx Enclosure Firmware | <tesm28b-1.21 | |
| Lenovo Thinkagile Vx Enclosure | ||
| Lenovo Thinksystem D2 Enclosure Firmware | <tesm28b-1.21 | |
| Lenovo Thinksystem D2 Enclosure | ||
| Ibm Nextscale Fan Power Controller Firmware | <44a-3.70 | |
| Ibm Nextscale Fan Power Controller |
Remedy
Upgrade to the firmware version (or newer) indicated for your model in the Product Impact section in LEN-72615.
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this authentication bypass vulnerability?
The vulnerability ID is CVE-2021-3897.
What is the severity of CVE-2021-3897?
The severity of CVE-2021-3897 is critical with a CVSS score of 9.8.
Which Lenovo products are affected by CVE-2021-3897?
The Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware are affected.
How does CVE-2021-3897 impact the affected products?
CVE-2021-3897 allows an unauthenticated attacker to execute commands on the SMM and FPC2.
How can I fix CVE-2021-3897?
To fix CVE-2021-3897, apply the necessary firmware updates provided by Lenovo, as mentioned in the reference link.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/weakness
- agent/author
- agent/references
- agent/remedy
- agent/last-modified-date
- agent/description
- agent/tags
- agent/event
- agent/first-publish-date
- vendor/lenovo
- canonical/lenovo nextscale n1200 enclosure firmware
- canonical/lenovo nextscale n1200 enclosure
- canonical/lenovo thinkagile hx enclosure certified node firmware
- canonical/lenovo thinkagile hx enclosure certified node
- canonical/lenovo thinkagile vx enclosure firmware
- canonical/lenovo thinkagile vx enclosure
- canonical/lenovo thinksystem d2 enclosure firmware
- canonical/lenovo thinksystem d2 enclosure
- vendor/ibm
- canonical/ibm nextscale fan power controller firmware
- canonical/ibm nextscale fan power controller