PT-2021-18276 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29525

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: TensorFlow versions prior to 2.5.0 TensorFlow versions 2.4.2 and earlier TensorFlow versions 2.3.3 and earlier TensorFlow versions 2.2.3 and earlier TensorFlow versions 2.1.4 and earlier

Description: An attacker can trigger a division by 0 in tf.raw ops.Conv2DBackpropInput. This is because the implementation does a division by a quantity that is controlled by the caller. The issue arises from the calculation of size A, size B, size C, and work unit size in the conv grad input ops.h file, which can lead to a division by zero.

Recommendations: For versions prior to 2.5.0, update to TensorFlow 2.5.0 or later. For versions 2.4.2 and earlier, update to TensorFlow 2.4.2 or later. For versions 2.3.3 and earlier, update to TensorFlow 2.3.3 or later. For versions 2.2.3 and earlier, update to TensorFlow 2.2.3 or later. For versions 2.1.4 and earlier, update to TensorFlow 2.1.4 or later. As a temporary workaround, consider avoiding the use of tf.raw ops.Conv2DBackpropInput until a patch is available.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29525

CVE-2021-29525

GHSA-XM2V-8RRW-W9PM

PYSEC-2021-162

PYSEC-2021-453

PYSEC-2021-651

Affected Products

Tensorflow

References · 14

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xm2v-8rrw-w9pm · Exploit
• https://github.com/tensorflow/tensorflow/commit/2be2cdf3a123e231b16f766aa0e27d56b4606535 · Patch
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29525 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-651 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29525 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-453 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xm2v-8rrw-w9pm · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29525 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-162 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-453.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-651.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-162.yaml · Note
• https://t.me/cvenotify/14682 · Telegram Post