Privilege escalation via unchecked migration metadata
Published May 16, 2024 · Updated Feb 13, 2025
Improper input validation in Intel TDX Module before 1.5.05.46.698 allows privileged local users to escalate privileges during TD migration. The migration import path accepts an out-of-range CURR_VM metadata value and uses it to index internal structures, causing out-of-bounds module memory access. A malicious host VMM must control a migratable TD and its migration key; the resulting undefined behavior and memory corruption breach the module's isolation boundary.
Summary
What happened
Improper input validation in Intel TDX Module before 1.5.05.46.698 allows privileged local users to escalate privileges during TD migration. The migration import path accepts an out-of-range CURR_VM metadata value and uses it to index internal structures, causing out-of-bounds module memory access. A malicious host VMM must control a migratable TD and its migration key; the resulting undefined behavior and memory corruption breach the module's isolation boundary.
The record
- CVE
- CVE-2023-45745
- Published
- May 16, 2024
- Updated
- Feb 13, 2025
- Vendor
- Topcon Positioning Systems, Inc.
- Product
- Intel TDX Module
- Classifications
- CWE-20, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- May 16, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=1.5.05.46.698
- Affected versionversion=before version 1.5.05.46.698
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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