Heap out-of-bounds access via unchecked requantization inputs
Published Aug 12, 2021 · Updated Aug 4, 2024
Improper input validation in TensorFlow MKL requantization allows local users to access heap data or trigger undefined behavior. MklRequantizationRangePerChannelOp accepts empty, non-four-dimensional, or channel-mismatched tensors, while MklRequantizePerChannelOp omits equivalent size and scalar checks. Exploitation requires local low-privileged control of operator arguments; the resulting null reference or out-of-bounds heap access can expose process data or disrupt execution.
Summary
What happened
Improper input validation in TensorFlow MKL requantization allows local users to access heap data or trigger undefined behavior. MklRequantizationRangePerChannelOp accepts empty, non-four-dimensional, or channel-mismatched tensors, while MklRequantizePerChannelOp omits equivalent size and scalar checks. Exploitation requires local low-privileged control of operator arguments; the resulting null reference or out-of-bounds heap access can expose process data or disrupt execution.
The record
- CVE
- CVE-2021-37665
- Published
- Aug 12, 2021
- Updated
- Aug 4, 2024
- Vendor
- Product
- TensorFlow
- Classifications
- CWE-20
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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 versionversion=< 2.3.4
- Affected versionversion=>= 2.4.0, < 2.4.3
- Affected versionversion=>= 2.5.0, < 2.5.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Upstream MKL requantization proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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