Insufficient Input Validation in ABL Affects AMD Products
CVE-2021-46773

8.8HIGH

Key Information:

Vendor

Amd
Status
Ryzen™ 2000 Series Desktop Processors “raven Ridge” Am4
Ryzen™ 2000 Series Desktop Processors “pinnacle Ridge”
Ryzen™ 3000 Series Desktop Processors “matisse” Am4
Amd Ryzen™ 5000 Series Desktop Processors “vermeer” Am4
Vendor
CVE Published:
9 May 2023

What is CVE-2021-46773?

The vulnerability in AMD's ABL arises from insufficient input validation, which allows a privileged attacker to manipulate ASP memory. This manipulation could lead to critical issues such as data corruption or unauthorized code execution, posing significant risks to system integrity and security. Users and administrators are urged to apply available patches and mitigations to ensure the protection of their systems.

Affected Version(s)

3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT x86 various

AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 x86 various

Ryzen™ 2000 Series Desktop Processors “Pinnacle Ridge” x86 various

References

https://www.amd.com/en/corporate/product-security/bulleti...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
The Cyber Security Vulnerability Database.