PT-2021-21785 · Google · Tensorflow

Published 2021-08-12 · Updated 2024-03-06 · CVE-2021-37668

Positive Technologies (AI Summary)

CVSS v4.0

6.8

Medium

Base vector

AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions TensorFlow versions prior to 2.6.0 TensorFlow versions 2.5.1 and earlier TensorFlow versions 2.4.3 and earlier TensorFlow versions 2.3.4 and earlier

Description An attacker can cause denial of service in applications serving models using tf.raw ops.UnravelIndex by triggering a division by 0. The implementation does not check that the tensor subsumed by dims is not empty. Hence, if one element of dims is 0, the implementation does a division by 0.

Recommendations For versions prior to 2.6.0, update to TensorFlow 2.6.0 or later. For versions 2.5.1 and earlier, update to TensorFlow 2.5.1 or later. For versions 2.4.3 and earlier, update to TensorFlow 2.4.3 or later. For versions 2.3.4 and earlier, update to TensorFlow 2.3.4 or later. As a temporary workaround, consider avoiding the use of tf.raw ops.UnravelIndex with dims containing a 0 value until a patch is available.

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-37668

CVE-2021-37668

GHSA-2WMV-37VQ-52G5

OPENSUSE-SU-2022:10014-1

OPENSUSE-SU-2024:12116-1

PYSEC-2021-290

PYSEC-2021-581

PYSEC-2021-779

Affected Products

Tensorflow

References · 87

• https://github.com/tensorflow/tensorflow/commit/a776040a5e7ebf76eeb7eb923bf1ae417dd4d233 · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2022:10014-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37668 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-779 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37668 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2wmv-37vq-52g5 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-581 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-290 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-37668 · Vendor Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2wmv-37vq-52g5 · Note
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-581.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-290.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-779.yaml · Note
• https://suse.com/security/cve/CVE-2021-37656 · Note