PT-2021-18270 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29519

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 API of tf.raw ops.SparseCross allows combinations which would result in a CHECK-failure and denial of service. This is because the implementation is tricked to consider a tensor of type tstring which in fact contains integral elements. Fixing the type confusion by preventing mixing DT STRING and DT INT64 types solves this issue.

Recommendations: For TensorFlow versions prior to 2.5.0, update to version 2.5.0 or later to resolve the issue. For TensorFlow version 2.4.2, apply the cherrypicked commit to resolve the issue. For TensorFlow version 2.3.3, apply the cherrypicked commit to resolve the issue. For TensorFlow version 2.2.3, apply the cherrypicked commit to resolve the issue. For TensorFlow version 2.1.4, apply the cherrypicked commit to resolve the issue. As a temporary workaround, consider restricting the use of the tf.raw ops.SparseCross function until a patch is available.

Exploit

Fix

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

BIT-TENSORFLOW-2021-29519

CVE-2021-29519

GHSA-772J-H9XW-FFP5

PYSEC-2021-156

PYSEC-2021-447

PYSEC-2021-645

Affected Products

Tensorflow

References · 12

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-772j-h9xw-ffp5 · Exploit
• https://github.com/tensorflow/tensorflow/commit/b1cc5e5a50e7cee09f2c6eb48eb40ee9c4125025 · Patch
• https://osv.dev/vulnerability/PYSEC-2021-447 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29519 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-645 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29519 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29519 · Security Note
• https://osv.dev/vulnerability/GHSA-772j-h9xw-ffp5 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-156 · Vendor Advisory
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-645.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-156.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-447.yaml · Note