PT-2021-23193 · Google · Tensorflow

Published 2021-11-05 · Updated 2024-03-06 · CVE-2021-41220

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 2.7.0 TensorFlow version 2.6.1

Description TensorFlow is an open source platform for machine learning. The async implementation of CollectiveReduceV2 suffers from a memory leak and a use after free due to asynchronous computation and accessing objects that have been std::move()d from.

Recommendations For versions prior to 2.7.0, update to TensorFlow 2.7.0 to resolve the issue. For version 2.6.1, apply the cherrypicked commit to resolve the issue. As a temporary workaround, consider disabling the CollectiveReduceV2 function until a patch is available.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BIT-TENSORFLOW-2021-41220

CVE-2021-41220

GHSA-GPFH-JVF9-7WG5

OPENSUSE-SU-2024:12116-1

PYSEC-2021-412

PYSEC-2021-629

PYSEC-2021-827

Affected Products

Tensorflow

References · 15

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-gpfh-jvf9-7wg5 · Exploit
• https://github.com/tensorflow/tensorflow/commit/ca38dab9d3ee66c5de06f11af9a4b1200da5ef75 · Patch
• https://osv.dev/vulnerability/PYSEC-2021-827 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-41220 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-gpfh-jvf9-7wg5 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-412 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41220 · Security Note
• https://osv.dev/vulnerability/CVE-2021-41220 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-629 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-629.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-412.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-827.yaml · Note
• https://t.me/cvenotify/23224 · Telegram Post
• https://t.me/cibsecurity/31934 · Telegram Post