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AVID-2026-R0888
Description
Crash in tf.math.segment_* operations (CVE-2021-41195)
Details
TensorFlow is an open source platform for machine learning. In affected versions the implementation of tf.math.segment_* operations results in a CHECK-fail related abort (and denial of service) if a segment id in segment_ids is large. This is similar to CVE-2021-29584 (and similar other reported vulnerabilities in TensorFlow, localized to specific APIs): the implementation (both on CPU and GPU) computes the output shape using AddDim. However, if the number of elements in the tensor overflows an int64_t value, AddDim results in a CHECK failure which provokes a std::abort. Instead, code should use AddDimWithStatus. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
Reason for inclusion in AVID: CVE-2021-41195 describes a vulnerability in TensorFlow’s tf.math.segment_* operations causing a denial-of-service via an integer overflow, leading to a crash. This concerns AI software stacks (TensorFlow), is located in a dependency used to build/train/deploy AI systems, constitutes a security vulnerability (CWE-190), and the report provides affected versions and a fix. Therefore it qualifies for AVID curation as a software supply-chain vulnerability in general-purpose AI systems.
References
- NVD entry
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-cq76-mxrc-vchh
- https://github.com/tensorflow/tensorflow/issues/46888
- https://github.com/tensorflow/tensorflow/pull/51733
- https://github.com/tensorflow/tensorflow/commit/e9c81c1e1a9cd8dd31f4e83676cab61b60658429
Affected or Relevant Artifacts
- Developer: tensorflow
- Deployer: tensorflow
- Artifact Details:
| Type | Name |
|---|---|
| System | tensorflow |
Impact
AVID Taxonomy Categorization
- Risk domains: Security
- SEP subcategories: S0100: Software Vulnerability
- Lifecycle stages: L06: Deployment
CVSS
| Version | 3.1 |
| Vector String | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Base Score | 5.5 |
| Base Severity | 🟠 Medium |
| Attack Vector | LOCAL |
| Attack Complexity | 🟢 Low |
| Privileges Required | 🟢 Low |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | 🔴 High |
CWE
| ID | Description |
|---|---|
| CWE-190 | CWE-190: Integer Overflow or Wraparound |
Other information
- Report Type: Advisory
- Credits:
- Date Reported: 2021-11-05
- Version: 0.3.3
- AVID Entry