CVE-2021-37689

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can craft a TFLite model that would trigger a null pointer dereference, which would result in a crash and denial of service. This is caused by the MLIR optimization of `L2NormalizeReduceAxis` operator. The [implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/compiler/mlir/lite/transforms/optimize.cc#L67-L70) unconditionally dereferences a pointer to an iterator to a vector without checking that the vector has elements. We have patched the issue in GitHub commit d6b57f461b39fd1aa8c1b870f1b974aac3554955. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published: Aug 12, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-37699.8# Vulnerability in `pygmalion`, `pygmalion-virtualenv` and `refined` themes **Description**: these themes use `print -P` on user-supplied st CVE-2021-376906.6TensorFlow is an end-to-end open source platform for machine learning. In affected versions when running shape functions, some functions (su CVE-2021-376915.5TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can craft a TFLite model that would CVE-2021-376925.5TensorFlow is an end-to-end open source platform for machine learning. In affected versions under certain conditions, Go code can trigger a CVE-2021-376937.5Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta4, when adding additional em CVE-2021-376947.8@asyncapi/java-spring-cloud-stream-template generates a Spring Cloud Stream (SCSt) microservice. In versions prior to 0.7.0 arbitrary code i CVE-2021-376955.4ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Fake CVE-2021-376966.5tmerc-cogs are a collection of open source plugins for the Red Discord bot. A vulnerability has been found in the code that allows any user CVE-2021-376976.5tmerc-cogs are a collection of open source plugins for the Red Discord bot. A vulnerability has been found in the code that allows any user CVE-2021-376987.5Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data CVE-2021-376996.1Next.js is an open source website development framework to be used with the React library. In affected versions specially encoded paths coul CVE-2021-37707.8vim is vulnerable to Heap-based Buffer Overflow