title: Type confusion leading to `CHECK`-failure based denial of service in TensorFlow
description: TensorFlow is an open source platform for machine learning. Prior to versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4, the macros that TensorFlow uses for writing assertions (e.g., `CHECK_LT`, `CHECK_GT`, etc.) have an incorrect logic when comparing `size_t` and `int` values. Due to type conversion rules, several of the macros would trigger incorrectly. Versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 contain a patch for this issue.
problem types: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
affected:
{
product: tensorflow
vendor: tensorflow
versions:
status: affected, version: < 2.6.4
status: affected, version: >= 2.7.0rc0, < 2.7.2
status: affected, version: >= 2.8.0rc0, < 2.8.1
status: affected, version: >= 2.9.0rc0, < 2.9.0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]