PT-2021-23194 · Google · Tensorflow

Published 2021-11-05 · Updated 2024-03-06 · CVE-2021-41221

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 versions 2.6.1 and earlier TensorFlow versions 2.5.2 and earlier TensorFlow versions 2.4.4 and earlier

Description The shape inference code for the Cudnn* operations in TensorFlow can be tricked into accessing invalid memory, via a heap buffer overflow. This occurs because the ranks of the input, input h, and input c parameters are not validated, but code assumes they have certain values.

Recommendations For versions prior to 2.7.0, update to TensorFlow 2.7.0 or later. For versions 2.6.1 and earlier, update to TensorFlow 2.6.1 or later. For versions 2.5.2 and earlier, update to TensorFlow 2.5.2 or later. For versions 2.4.4 and earlier, update to TensorFlow 2.4.4 or later. As a temporary workaround, consider restricting the use of the Cudnn* operations until a patch is available. Restrict access to the input, input h, and input c parameters to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-120

CWE-787

Related Identifiers

BIT-TENSORFLOW-2021-41221

CVE-2021-41221

GHSA-CQV6-3PHM-HCWX

OPENSUSE-SU-2024:12116-1

PYSEC-2021-413

PYSEC-2021-630

PYSEC-2021-828

Affected Products

Tensorflow

References · 15

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-cqv6-3phm-hcwx · Exploit
• https://github.com/tensorflow/tensorflow/commit/af5fcebb37c8b5d71c237f4e59c6477015c78ce6 · Patch
• https://osv.dev/vulnerability/CVE-2021-41221 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-41221 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-828 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-630 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-413 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-41221 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cqv6-3phm-hcwx · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-630.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-413.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-828.yaml · Note
• https://t.me/cvenotify/23226 · Telegram Post
• https://t.me/cibsecurity/31923 · Telegram Post