Local information disclosure via unchecked command length
Published Feb 28, 2023 · Updated Nov 4, 2025
Out-of-bounds read in TPM 2.0 Library revisions 1.16, 1.38, and 1.59 allows local users to read sensitive TPM data. CryptParameterDecryption reads a two-byte size field from the command buffer before checking that bufferSize covers that field. A user-mode application must be able to send a malicious TPM command with encrypted parameters; the read extends two bytes beyond the ExecuteCommand buffer.
Summary
What happened
Out-of-bounds read in TPM 2.0 Library revisions 1.16, 1.38, and 1.59 allows local users to read sensitive TPM data. CryptParameterDecryption reads a two-byte size field from the command buffer before checking that bufferSize covers that field. A user-mode application must be able to send a malicious TPM command with encrypted parameters; the read extends two bytes beyond the ExecuteCommand buffer.
The record
- CVE
- CVE-2023-1018
- Published
- Feb 28, 2023
- Updated
- Nov 4, 2025
- Vendor
- Trusted Computing Group
- Product
- Trusted Platform Module 2.0 Library Specification
- Classifications
- CWE-125, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 28, 2023CVE publishedPublication date reported by the CVE source.
- Nov 4, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.16
- Affected versionversion=1.38
- Affected versionversion=1.59
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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