Arbitrary MSR Writes in AMD ATI Diagnostics Hardware Abstraction Utility
CVE-2019-7246

6.7MEDIUM

Key Information:

Vendor

Amd
Status
Atillk64
Vendor
CVE Published:
18 May 2020

What is CVE-2019-7246?

A significant vulnerability exists in the AMD ATI Diagnostics Hardware Abstraction Sys/Overclocking Utility, where the atillk64.sys driver inadequately filters Model Specific Registers (MSRs). This flaw allows an attacker to leverage the wrmsr instruction for arbitrary writes, potentially enabling unauthorized Ring-0 code execution. Such exploitation may lead to a serious escalation of privileges, impacting the integrity and security of the affected system.

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References

https://github.com/fireeye/Vulnerability-Disclosures/blob...
x_refsource_MISC

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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