PT-2021-18350 · Google · Tensorflow

Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29599

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 implementation of the Split TFLite operator in TensorFlow is vulnerable to a division by zero error. An attacker can craft a model such that num splits would be 0, causing the error. This issue is related to the line of code where input size is divided by num splits without proper validation.

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 validating the num splits value to prevent division by zero errors.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29599

CVE-2021-29599

GHSA-97WF-P777-86JQ

PYSEC-2021-236

PYSEC-2021-527

PYSEC-2021-725

Affected Products

Tensorflow

References · 15

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-97wf-p777-86jq · Exploit
• https://github.com/tensorflow/tensorflow/commit/b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d · Patch
• https://osv.dev/vulnerability/PYSEC-2021-527 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-725 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29599 · Security Note
• https://osv.dev/vulnerability/GHSA-97wf-p777-86jq · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-236 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29599 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29599 · Vendor Advisory
• https://github.com/tensorflow/tensorflow/blob/e2752089ef7ce9bcf3db0ec618ebd23ea119d0c7/tensorflow/lite/kernels/split.cc#L63-L65 · Note
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-527.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-236.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-725.yaml · Note
• https://t.me/cvenotify/14662 · Telegram Post