PT-2021-21775 · Google · Tensorflow

Mihaimaruseac · CVE-2021-37659 · Published 2021-08-12 · Updated 2024-03-06

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions TensorFlow versions prior to 2.6.0 TensorFlow versions 2.5.1 and earlier TensorFlow versions 2.4.3 and earlier TensorFlow versions 2.3.4 and earlier

Description An attacker can cause undefined behavior via binding a reference to null pointer in all binary cwise operations that don't require broadcasting. The implementation assumes that the two inputs have exactly the same number of elements but does not check that, triggering heap OOB reads and undefined behavior due to binding to nullptr.

Recommendations For versions prior to 2.6.0, update to TensorFlow 2.6.0 or later. For versions 2.5.1 and earlier, update to TensorFlow 2.5.1 or later. For versions 2.4.3 and earlier, update to TensorFlow 2.4.3 or later. For versions 2.3.4 and earlier, update to TensorFlow 2.3.4 or later. As a temporary workaround, consider restricting the use of binary cwise operations that don't require broadcasting until a patch is available.

Fix

NULL Pointer Dereference

Out of bounds Read

Weakness Enumeration

CWE-476

CWE-125

Related Identifiers

BIT-TENSORFLOW-2021-37659

CVE-2021-37659

GHSA-Q3G3-H9R4-PRRC

OPENSUSE-SU-2022:10014-1

OPENSUSE-SU-2024:12116-1

PYSEC-2021-281

PYSEC-2021-572

PYSEC-2021-770

Affected Products

Tensorflow

References · 88

• https://github.com/tensorflow/tensorflow/commit/93f428fd1768df147171ed674fee1fc5ab8309ec · Patch
• https://osv.dev/vulnerability/GHSA-q3g3-h9r4-prrc · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:10014-1 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-37659 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-770 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37659 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-281 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37659 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-572 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q3g3-h9r4-prrc · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-281.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-770.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-572.yaml · Note
• https://suse.com/security/cve/CVE-2021-37654 · Note