PT-2021-18296 · Google · Tensorflow

Yakun Zhang + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-29545

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 An attacker can trigger a denial of service via a CHECK-fail in converting sparse tensors to CSR Sparse matrices. This is because the implementation does a double redirection to access an element of an array allocated on the heap. If the value at indices(i, 0) is such that indices(i, 0) + 1 is outside the bounds of csr row ptr, this results in writing outside of bounds of heap allocated data.

Recommendations For versions prior to 2.5.0, update to TensorFlow 2.5.0 or later. For versions 2.4.2 and earlier, update to TensorFlow 2.4.2 or later. For versions 2.3.3 and earlier, update to TensorFlow 2.3.3 or later. For versions 2.2.3 and earlier, update to TensorFlow 2.2.3 or later. For versions 2.1.4 and earlier, update to TensorFlow 2.1.4 or later.

Exploit

Fix

Weakness Enumeration

CWE-131

Related Identifiers

BIT-TENSORFLOW-2021-29545

CVE-2021-29545

GHSA-HMG3-C7XJ-6QWM

PYSEC-2021-182

PYSEC-2021-473

PYSEC-2021-671

Affected Products

Tensorflow

References · 14

• 🔥 https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hmg3-c7xj-6qwm · Exploit
• https://github.com/tensorflow/tensorflow/commit/1e922ccdf6bf46a3a52641f99fd47d54c1decd13 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-29545 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-182 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hmg3-c7xj-6qwm · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-473 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29545 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-671 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-29545 · Vendor Advisory
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-671.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-182.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-473.yaml · Note
• https://t.me/cvenotify/14592 · Telegram Post