CVE-2021-46760 : What You Need to Know

This CVE record involves a vulnerability related to AMD processors that could potentially lead to an attacker leaking sensitive information or achieving code execution.

Understanding CVE-2021-46760

This CVE pertains to a vulnerability that can be exploited through a malformed system call to the bootloader.

What is CVE-2021-46760?

A malicious or compromised UApp or ABL can send a malformed system call to the bootloader, resulting in an out-of-bounds memory access that may lead to the leakage of sensitive information or code execution.

The Impact of CVE-2021-46760

The vulnerability could allow an attacker to exploit out-of-bound memory access, potentially leading to the compromise of sensitive data or execution of arbitrary code.

Technical Details of CVE-2021-46760

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue arises from a malformed system call to the bootloader, facilitating out-of-bounds memory access.

Affected Systems and Versions

Affected platforms: x86
Affected products:
3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT
Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS
Affected versions: Various

Exploitation Mechanism

The exploitation involves sending a malicious or compromised system call to the bootloader.

Mitigation and Prevention

To address CVE-2021-46760, follow these mitigation strategies:

Immediate Steps to Take

Apply patches provided by AMD promptly
Monitor for any suspicious system call activity

Long-Term Security Practices

Regularly update system firmware and software
Implement strict access controls and user permissions

Patching and Updates

Ensure that all systems running the affected processors receive and apply the necessary security patches.