Out-of-bounds read in TensorFlow - CVE-2021-37670
Published: August 12, 2021 / Updated: May 3, 2026
Vulnerability identifier: #VU129233
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-37670
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
TensorFlow
TensorFlow
Software vendor:
TensorFlow
TensorFlow
Description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in tf.raw_ops.UpperBound and tf.raw_ops.LowerBound when processing specially crafted illegal arguments. A remote attacker can send specially crafted illegal arguments to disclose sensitive information.
The issue occurs because the rank of the sorted_input tensor is not validated before the first two dimensions are accessed.
Remediation
Install security update from vendor's website.