PT-2021-18331 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29580

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 The implementation of tf.raw ops.FractionalMaxPoolGrad triggers an undefined behavior if one of the input tensors is empty. The code is also vulnerable to a denial of service attack as a CHECK condition becomes false and aborts the process. The implementation fails to validate that input and output tensors are not empty and are of the same rank. Each of these unchecked assumptions is responsible for the above issues.

Recommendations For versions prior to 2.5.0, update to TensorFlow 2.5.0 or later. For version 2.4.2, cherrypick the commit to fix the issue. For version 2.3.3, cherrypick the commit to fix the issue. For version 2.2.3, cherrypick the commit to fix the issue. For version 2.1.4, cherrypick the commit to fix the issue. As a temporary workaround, consider disabling the tf.raw ops.FractionalMaxPoolGrad function until a patch is available.

Exploit

Fix

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

BIT-TENSORFLOW-2021-29580

CVE-2021-29580

GHSA-X8H6-XGQX-JQGP

PYSEC-2021-217

PYSEC-2021-508

PYSEC-2021-706

Affected Products

Tensorflow

References · 14

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-x8h6-xgqx-jqgp · Exploit
• https://github.com/tensorflow/tensorflow/commit/32fdcbff9d06d010d908fcc4bd4b36eb3ce15925 · Patch
• https://osv.dev/vulnerability/CVE-2021-29580 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29580 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-217 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-x8h6-xgqx-jqgp · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-508 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-706 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29580 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-706.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-217.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-508.yaml · Note
• https://t.me/cvenotify/14738 · Telegram Post