PT-2021-18308 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29557

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 version 2.4.2 TensorFlow version 2.3.3 TensorFlow version 2.2.3 TensorFlow version 2.1.4

Description An attacker can cause a denial of service via a FPE runtime error in tf.raw ops.SparseMatMul. The division by 0 occurs deep in Eigen code because the b tensor is empty.

Recommendations For TensorFlow versions prior to 2.5.0, update to version 2.5.0 or later. For TensorFlow version 2.4.2, apply the cherrypicked commit. For TensorFlow version 2.3.3, apply the cherrypicked commit. For TensorFlow version 2.2.3, apply the cherrypicked commit. For TensorFlow version 2.1.4, apply the cherrypicked commit. As a temporary workaround, consider avoiding the use of tf.raw ops.SparseMatMul with empty b tensors until a patch is available.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

BIT-TENSORFLOW-2021-29557

CVE-2021-29557

GHSA-XW93-V57J-FCGH

PYSEC-2021-194

PYSEC-2021-485

PYSEC-2021-683

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xw93-v57j-fcgh · Exploit
• https://github.com/tensorflow/tensorflow/commit/7f283ff806b2031f407db64c4d3edcda8fb9f9f5 · Patch
• https://osv.dev/vulnerability/PYSEC-2021-683 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29557 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-485 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29557 · Security Note
• https://osv.dev/vulnerability/CVE-2021-29557 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-194 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xw93-v57j-fcgh · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-485.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-683.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-194.yaml · Note