Side Channel Vulnerability Affecting AMD Processors
CVE-2023-20569

4.7MEDIUM

Key Information:

Vendor

Amd
Status
Ryzen™ 3000 Series Desktop Processors
Ryzen™ Pro 3000 Series Desktop Processors
Ryzen™ 3000 Series Desktop Processors With Radeon™ Graphics
Ryzen™ Pro 3000 Series Processors With Radeon™ Vega Graphics
Vendor
CVE Published:
8 August 2023

What is CVE-2023-20569?

A side channel vulnerability has been identified in certain AMD CPUs, enabling attackers to manipulate the return address prediction. This flaw can result in speculative execution at addresses controlled by the attacker, which may lead to unauthorized information disclosure. It highlights the critical need for robust defensive measures to mitigate potential risks associated with speculative execution on affected processors.

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Affected Version(s)

1st Gen AMD EPYC™ Processors x86 various

Ryzen™ Threadripper™ 5000 Series Processors x86 various

2nd Gen AMD EPYC™ Processors x86 various

References

https://www.amd.com/en/corporate/product-security/bulleti...
vendor-advisory
http://xenbits.xen.org/xsa/advisory-434.html
http://www.openwall.com/lists/oss-security/2023/08/08/4

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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