PT-2021-18311 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29560

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 heap buffer overflow in tf.raw ops.RaggedTensorToTensor. This is because the implementation uses the same index to access two arrays in parallel. Since the user controls the shape of the input arguments, an attacker could trigger a heap OOB access when parent output index is shorter than row split.

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

Exploit

Fix

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-125

CWE-787

Related Identifiers

BIT-TENSORFLOW-2021-29560

CVE-2021-29560

GHSA-8GV3-57P6-G35R

PYSEC-2021-197

PYSEC-2021-488

PYSEC-2021-686

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-8gv3-57p6-g35r · Exploit
• https://github.com/tensorflow/tensorflow/commit/a84358aa12f0b1518e606095ab9cfddbf597c121 · Patch
• https://osv.dev/vulnerability/GHSA-8gv3-57p6-g35r · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-197 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-488 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-686 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29560 · Security Note
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29560 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29560 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-686.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-197.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-488.yaml · Note