PT-2021-18323 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29572

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 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 The implementation of tf.raw ops.SdcaOptimizer triggers undefined behavior due to dereferencing a null pointer. This occurs because the implementation does not validate that the user-supplied arguments satisfy all constraints expected by the op.

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

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BIT-TENSORFLOW-2021-29572

CVE-2021-29572

GHSA-5GQF-456P-4836

PYSEC-2021-209

PYSEC-2021-500

PYSEC-2021-698

Affected Products

Tensorflow

References · 13

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-5gqf-456p-4836 · Exploit
• https://github.com/tensorflow/tensorflow/commit/f7cc8755ac6683131fdfa7a8a121f9d7a9dec6fb · Patch
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29572 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-5gqf-456p-4836 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-500 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-209 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29572 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29572 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-698 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-698.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-209.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-500.yaml · Note