CVE-2021-46795
First published: Tue Jan 10 2023(Updated: )
A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.
Credit: psirt@amd.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Amd Comboam4v2 Pi | <1.2.0.5 | |
| Amd Comboam4v2 Pi Firmware | ||
| Amd Renoirpi-fp6 Firmware | <1.0.0.7 | |
| Cezanne | <1.0.0.6 | |
| AMD Cezanne |
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Frequently Asked Questions
What is the severity of CVE-2021-46795?
CVE-2021-46795 is classified as a high-severity vulnerability due to the potential for denial of service.
How do I fix CVE-2021-46795?
To mitigate CVE-2021-46795, you should update to the latest firmware released by AMD that addresses this vulnerability.
What causes CVE-2021-46795?
CVE-2021-46795 is caused by a TOCTOU vulnerability where a compromised BIOS may lead the TEE OS to access out-of-bounds memory.
Which products are affected by CVE-2021-46795?
CVE-2021-46795 affects specific versions of AMD Comboam4v2 Pi, Renoirpi-fp6, and Cezanne firmware.
What are the potential risks associated with CVE-2021-46795?
The potential risks of CVE-2021-46795 include system instability and denial of service due to memory access violations.
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