CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
12.7%
Bulletin ID: AMD-SB-1031 **Potential Impact:**Varies by CVE, see descriptions below **Severity:**Varies by CVE, see descriptions below
In collaboration with various third parties, AMD platforms were audited for potential security exposures. Potential vulnerabilities in AMD Secure Processor (ASP), AMD System Management Unit (SMU), and other platform components were discovered and are being mitigated in AGESA™ PI software packages associated with AMD Athlon™ Processors, Ryzen™ Processors and Threadripper™ Processors.
Refer to Glossary for explanation of terms
CVE | Severity | Description |
---|---|---|
CVE‑2021‑26316 | High | Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution. |
CVE‑2021‑26346 | Medium | Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service. |
CVE‑2021‑46795 | Low | 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. |
The AGESA™ versions listed below have been released to the Original Equipment Manufacturers (OEM) to mitigate these issues. Please refer to your OEM for the BIOS update specific to your product.
DESKTOP
CVE|AMD Ryzen™ 2000 series Desktop Processors
“Raven Ridge” AM4|AMD Ryzen™ 2000 Series Desktop Processors
“Pinnacle Ridge”|AMD Ryzen™ 3000 Series Desktop Processors
“Matisse” AM4|AMD Ryzen™ 5000 Series Desktop Processors
“Vermeer” AM4|AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics
“Cezanne” AM4
—|—|—|—|—|—
Minimum version to mitigate all listed CVEs|Raven-FP5-AM4 1.1.0.D
ComboAM4PI 1.0.0.8
ComboAM4v2 PI 1.2.0.4
PinnaclePI-AM4 1.0.0.C|PinnaclePI-AM4 1.0.0.C
ComboAM4PI 1.0.0.8
ComboAM4v2 PI 1.2.0.4|N/A|N/A|ComboAM4v2 PI 1.2.0.8
CVE‑2021‑26316| Raven-FP5-AM4 1.1.0.D
ComboAM4PI 1.0.0.8
ComboAM4v2 PI 1.2.0.4
PinnaclePI-AM4 1.0.0.C| PinnaclePI-AM4 1.0.0.C
ComboAM4PI 1.0.0.8
ComboAM4v2 PI 1.2.0.4| N/A| N/A| ComboAM4v2 PI 1.2.0.4
CVE‑2021‑26346| N/A| N/A| N/A| N/A| ComboAM4v2 PI 1.2.0.8
CVE‑2021‑46795| N/A| N/A| N/A| N/A| ComboAM4v2 PI 1.2.0.5
HIGH END DESKTOP
CVE|2nd Gen AMD Ryzen™ Threadripper™ Processors
“Colfax”|3rd Gen AMD Ryzen™ Threadripper™ Processors
“Castle Peak” HEDT
—|—|—
Minimum version to mitigate all listed CVEs|SummitPI-SP3r2 1.1.0.5|CastlePeakPI-SP3r3 1.0.0.6
CVE‑2021‑26316| SummitPI-SP3r2 1.1.0.5| CastlePeakPI-SP3r3 1.0.0.6
CVE‑2021‑26346| N/A| N/A
CVE‑2021‑46795| N/A| N/A
WORKSTATION
CVE|AMD Ryzen™ Threadripper™ PRO Processors
“Castle Peak” WS|AMD Ryzen™ Threadripper™ PRO Processors
“Chagall” WS
—|—|—
Minimum version to mitigate all listed CVEs|CastlePeakWSPI-sWRX8 1.0.0.7
ChagallWSPI-sWRX8 0.0.9.0|N/A
CVE‑2021‑26316| CastlePeakWSPI-sWRX8 1.0.0.7
ChagallWSPI-sWRX8 0.0.9.0| N/A
CVE‑2021‑26346| N/A| N/A
CVE‑2021‑46795| N/A| N/A
MOBILE - AMD Athlon™ Series
CVE|AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
“Dali”/”Dali” ULP|AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
“Pollock”
—|—|—
Minimum version to mitigate all listed CVEs|PicassoPI-FP5 1.0.0.D|PollockPI-FT5 1.0.0.3
CVE‑2021‑26316| PicassoPI-FP5 1.0.0.D| PollockPI-FT5 1.0.0.3
CVE‑2021‑26346| N/A| N/A
CVE‑2021‑46795| N/A| N/A
MOBILE - AMD Ryzen™ Series
CVE|AMD Ryzen™ 2000 Series Mobile Processors
“Raven Ridge” FP5|AMD Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics
“Picasso”|AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
“Renoir” FP6|AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
“Lucienne”|AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
“Cezanne”|AMD Ryzen™ 6000 Series Mobile Processors
“Rembrandt”
—|—|—|—|—|—|—
Minimum version to mitigate all listed CVEs|N/A|PicassoPI-FP5 1.0.0.D ComboAM4PI 1.0.0.8 ComboAM4v2 PI 1.2.0.4|RenoirPI-FP6 1.0.0.9
ComboAM4v2 PI 1.2.0.8|CezannePI-FP6 1.0.0.B|CezannePI-FP6 1.0.0.B|N/A
CVE‑2021‑26316| N/A| PicassoPI-FP5 1.0.0.D ComboAM4PI 1.0.0.8 ComboAM4v2 PI 1.2.0.4| RenoirPI-FP6 1.0.0.7 ComboAM4v2 PI 1.2.0.4| CezannePI-FP6 1.0.0.6| CezannePI-FP6 1.0.0.6| N/A
CVE‑2021‑26346| N/A| N/A| RenoirPI-FP6 1.0.0.9
ComboAM4v2 PI 1.2.0.8| CezannePI-FP6 1.0.0.B| CezannePI-FP6 1.0.0.B| N/A
CVE‑2021‑46795| N/A| N/A| RenoirPI-FP6 1.0.0.7 ComboAM4v2 PI 1.2.0.5| CezannePI-FP6 1.0.0.6| CezannePI-FP6 1.0.0.6| N/A