PT-2021-18278 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29527

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.QuantizedConv2D. This is because the implementation does a division by a quantity that is controlled by the caller. The issue arises from the calculation of patches per chunk, which is based on filter value count and can be manipulated by the caller.

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 avoiding the use of tf.raw ops.QuantizedConv2D until a patch is available.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29527

CVE-2021-29527

GHSA-X4G7-FVJJ-PRG8

PYSEC-2021-164

PYSEC-2021-455

PYSEC-2021-653

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-x4g7-fvjj-prg8 · Exploit
• https://github.com/tensorflow/tensorflow/commit/cfa91be9863a91d5105a3b4941096044ab32036b · Patch
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29527 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-x4g7-fvjj-prg8 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29527 · Security Note
• https://osv.dev/vulnerability/CVE-2021-29527 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-455 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-164 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-653 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-164.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-455.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-653.yaml · Note