CVE-2022-23820

Description

Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory amd.com Vendor Advisory amd.com Vendor Advisory amd.com
Affected: AMD Ryzen™ 3000 series Desktop Processors “Matisse"
Affected: AMD AMD Ryzen™ 5000 Series Desktop Processors “Vermeer”
Affected: AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”
Affected: AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4
Affected: AMD AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax”
Affected: AMD AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” HEDT
Affected: AMD AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3
Affected: AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors “Chagall” WS
Affected: AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”
Affected: AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics “Picasso” FP5
Affected: AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6
Affected: AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”
Affected: AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”
Affected: AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"
Affected: AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”
Affected: AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”
Affected: AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics “Barcelo-R”
Affected: AMD 3rd Gen AMD EPYC™ Processors
Affected: AMD AMD EPYC™ Embedded 7003
Affected: AMD AMD EPYC™ Embedded 7003
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002 vendor advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 vendor advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-23820?
CVE-2022-23820 has been scored as a high severity vulnerability.
How to fix CVE-2022-23820?
To fix CVE-2022-23820, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23820 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23820 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23820?
CVE-2022-23820 affects AMD Ryzen™ 3000 series Desktop Processors “Matisse", AMD AMD Ryzen™ 5000 Series Desktop Processors “Vermeer”, AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne”, AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4, AMD AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax”, AMD AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” HEDT, AMD AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3, AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors “Chagall” WS, AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”, AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics “Picasso” FP5, AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics “Renoir” FP6, AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”, AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt", AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”, AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics “Barcelo”, AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics “Barcelo-R”, AMD 3rd Gen AMD EPYC™ Processors, AMD AMD EPYC™ Embedded 7003, AMD AMD EPYC™ Embedded 7003.
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