PT-2021-18338 · Google · Tensorflow

Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29587

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 The Prepare step of the SpaceToDepth TFLite operator does not check for 0 before division. An attacker can craft a model such that params->block size would be zero. This issue can be exploited by an attacker crafting a malicious model.

Recommendations For TensorFlow versions prior to 2.5.0, update to version 2.5.0 or later. For TensorFlow versions 2.4.2 and earlier, update to version 2.4.2 or later. For TensorFlow versions 2.3.3 and earlier, update to version 2.3.3 or later. For TensorFlow versions 2.2.3 and earlier, update to version 2.2.3 or later. For TensorFlow versions 2.1.4 and earlier, update to version 2.1.4 or later. As a temporary workaround, consider restricting the use of the SpaceToDepth TFLite operator until a patch is available.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29587

CVE-2021-29587

GHSA-J7RM-8WW4-XX2G

PYSEC-2021-224

PYSEC-2021-515

PYSEC-2021-713

Affected Products

Tensorflow

References · 15

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j7rm-8ww4-xx2g · Exploit
• https://github.com/tensorflow/tensorflow/commit/0d45ea1ca641b21b73bcf9c00e0179cda284e7e7 · Patch
• https://osv.dev/vulnerability/PYSEC-2021-515 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-713 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29587 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-224 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29587 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-j7rm-8ww4-xx2g · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29587 · Vendor Advisory
• https://github.com/tensorflow/tensorflow/blob/5f7975d09eac0f10ed8a17dbb6f5964977725adc/tensorflow/lite/kernels/space_to_depth.cc#L63-L67 · Note
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-515.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-224.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-713.yaml · Note
• https://t.me/cvenotify/14681 · Telegram Post