PT-2021-18279 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29528

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.QuantizedMul. This is because the implementation does a division by a quantity that is controlled by the caller. The issue can be exploited by passing specific values to the tf.raw ops.QuantizedMul function, such as empty tensors or tensors with specific values.

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

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29528

CVE-2021-29528

GHSA-6F84-42VF-PPWP

PYSEC-2021-165

PYSEC-2021-456

PYSEC-2021-654

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-6f84-42vf-ppwp · Exploit
• https://github.com/tensorflow/tensorflow/commit/a1b11d2fdd1e51bfe18bb1ede804f60abfa92da6 · Patch
• https://osv.dev/vulnerability/CVE-2021-29528 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-654 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-165 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29528 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-456 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29528 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6f84-42vf-ppwp · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-654.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-165.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-456.yaml · Note