CVE-2021-46795
published 2023-01-11CVE-2021-46795: 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…
PriorityP416medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.14%
3.5th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| amd | cezannepi-fp6_firmware | < 1.0.0.6 | 1.0.0.6 |
| amd | comboam4v2_pi_firmware | < 1.2.0.5 | 1.2.0.5 |
| amd | renoirpi-fp6_firmware | < 1.0.0.7 | 1.0.0.7 |
| amd | ryzen_3000_series | — | — |
| amd | ryzen_5000_series | — | — |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat4.7MEDIUM
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GHSA
GHSA-wfj9-288h-5mpm: 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 bo
ghsa_unreviewed·2023-01-11
CVE-2021-46795 [MEDIUM] CWE-367 GHSA-wfj9-288h-5mpm: 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 bo
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.
Red Hat
hw: amd: TOCTOU (time-of-check to time-of-use) vulnerability cause memory out of bound results in a denial of service
vendor_redhat·2023-01-10·CVSS 4.7
CVE-2021-46795 [MEDIUM] hw: amd: TOCTOU (time-of-check to time-of-use) vulnerability cause memory out of bound results in a denial of service
hw: amd: TOCTOU (time-of-check to time-of-use) vulnerability cause memory out of bound results in a denial of service
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.
A Time-of-check to time-of-use (TOCTOU) vulnerability exists in hw. This flaw allows an attacker to use a compromised BIOS to cause the trusted execution environment (TEE) operating system to read memory out-of-bounds, potentially resulting in a denial of service.
Mitigation: Please contact AMD for more updates on this flaw.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-01-11
Published