PT-2021-18349 · Google · Tensorflow

Mihaimaruseac · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29598

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, 2.3.3, 2.2.3, and 2.1.4 are also affected

Description The implementation of the SVDF TFLite operator in TensorFlow is vulnerable to a division by zero error. An attacker can craft a model such that params->rank would be 0, causing the error.

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

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29598

CVE-2021-29598

GHSA-PMPR-55FJ-R229

PYSEC-2021-235

PYSEC-2021-526

PYSEC-2021-724

Affected Products

Tensorflow

References · 15

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-pmpr-55fj-r229 · Exploit
• https://github.com/tensorflow/tensorflow/commit/6841e522a3e7d48706a02e8819836e809f738682 · Patch
• https://osv.dev/vulnerability/PYSEC-2021-724 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-235 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29598 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-pmpr-55fj-r229 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29598 · Security Note
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29598 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-526 · Vendor Advisory
• https://github.com/tensorflow/tensorflow/blob/7f283ff806b2031f407db64c4d3edcda8fb9f9f5/tensorflow/lite/kernels/svdf.cc#L99-L102 · Note
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-526.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-724.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-235.yaml · Note
• https://t.me/cvenotify/14674 · Telegram Post