PT-2021-18306 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29555

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 cause a denial of service via a FPE runtime error in tf.raw ops.FusedBatchNorm. This is because the implementation performs a division based on the last dimension of the x tensor. Since this is controlled by the user, an attacker can trigger a denial of service.

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.FusedBatchNorm until a patch is available.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29555

CVE-2021-29555

GHSA-R35G-4525-29FQ

PYSEC-2021-192

PYSEC-2021-483

PYSEC-2021-681

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r35g-4525-29fq · Exploit
• https://github.com/tensorflow/tensorflow/commit/1a2a87229d1d61e23a39373777c056161eb4084d · Patch
• https://osv.dev/vulnerability/GHSA-r35g-4525-29fq · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-192 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-483 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29555 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-681 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29555 · Security Note
• https://osv.dev/vulnerability/CVE-2021-29555 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-192.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-483.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-681.yaml · Note