Kernel code execution via unvalidated IOCTL buffers
Published Aug 15, 2023 · Updated Oct 8, 2024
Improper input validation in AMD Ryzen Master before 2.11.2.2659 allows local users with administrative rights to execute Windows kernel code. The Ryzen Master driver accepts IOCTL input buffers without adequately validating requested memory operations before performing physical-memory reads or writes. Administrative access is required; exploitation can disclose kernel memory, modify protected memory, or execute attacker-controlled code in kernel mode.
Summary
What happened
Improper input validation in AMD Ryzen Master before 2.11.2.2659 allows local users with administrative rights to execute Windows kernel code. The Ryzen Master driver accepts IOCTL input buffers without adequately validating requested memory operations before performing physical-memory reads or writes. Administrative access is required; exploitation can disclose kernel memory, modify protected memory, or execute attacker-controlled code in kernel mode.
The record
- CVE
- CVE-2023-20564
- Published
- Aug 15, 2023
- Updated
- Oct 8, 2024
- Vendor
- Advanced Micro Devices, Inc.
- Product
- AMD Ryzen Master
- Classifications
- CWE-20, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 15, 2023CVE publishedPublication date reported by the CVE source.
- Oct 8, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected version<2.11.2.2659
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- AMD Ryzen Master Driver Physical Memory Access PoCproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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