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AVID-2026-R0792

Description

Null pointer dereference in TFLite’s Reshape operator (CVE-2021-29592)

Details

TensorFlow is an end-to-end open source platform for machine learning. The fix for CVE-2020-15209(https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15209) missed the case when the target shape of Reshape operator is given by the elements of a 1-D tensor. As such, the fix for the vulnerability(https://github.com/tensorflow/tensorflow/blob/9c1dc920d8ffb4893d6c9d27d1f039607b326743/tensorflow/lite/core/subgraph.cc#L1062-L1074) allowed passing a null-buffer-backed tensor with a 1D shape. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Reason for inclusion in AVID: CVE-2021-29592 is a software vulnerability in TensorFlow Lite’s Reshape operator (null pointer dereference). TensorFlow/TFLite are core AI software/frameworks used in building and deploying general-purpose AI systems, and this vulnerability affects a dependency commonly used in AI pipelines (inference/runtime). It is a security/safety vulnerability with local attack vector and low impact per CVSS, and the report provides explicit references (CVE record, advisory, and commit) sufficient to classify it for AVID curation.

References

Affected or Relevant Artifacts

  • Developer: tensorflow
  • Deployer: tensorflow
  • Artifact Details:
TypeName
Systemtensorflow

Impact

AVID Taxonomy Categorization

  • Risk domains: Security
  • SEP subcategories: S0100: Software Vulnerability
  • Lifecycle stages: L06: Deployment

CVSS

Version3.1
Vector StringCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Base Score4.4
Base Severity🟠 Medium
Attack VectorLOCAL
Attack Complexity🟢 Low
Privileges Required🟢 Low
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity Impact🟢 Low
Availability Impact🟢 Low

CWE

IDDescription
CWE-476CWE-476: NULL Pointer Dereference

Other information

  • Report Type: Advisory
  • Credits:
  • Date Reported: 2021-05-14
  • Version: 0.3.3
  • AVID Entry