PT-2021-21764 · Google · Tensorflow

Mihaimaruseac · Published 2021-08-12 · Updated 2024-03-06 · CVE-2021-37649

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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 The code for tf.raw ops.UncompressElement can be made to trigger a null pointer dereference. The implementation obtains a pointer to a CompressedElement from a Variant tensor and then proceeds to dereference it for decompressing. There is no check that the Variant tensor contained a CompressedElement, so the pointer is actually 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 disabling the tf.raw ops.UncompressElement function until a patch is available.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BIT-TENSORFLOW-2021-37649

CVE-2021-37649

GHSA-6GV8-P3VJ-PXVR

OPENSUSE-SU-2022:10014-1

OPENSUSE-SU-2024:12116-1

PYSEC-2021-271

PYSEC-2021-562

PYSEC-2021-760

Affected Products

Tensorflow

References · 87

• https://github.com/tensorflow/tensorflow/commit/7bdf50bb4f5c54a4997c379092888546c97c3ebd · Patch
• https://osv.dev/vulnerability/PYSEC-2021-760 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:10014-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37649 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-562 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-tensorflow-2021-37649 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37649 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2021-271 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6gv8-p3vj-pxvr · Vendor Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-6gv8-p3vj-pxvr · Note
• https://github.com/tensorflow/tensorflow · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-760.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-562.yaml · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-271.yaml · Note
• https://suse.com/security/cve/CVE-2021-37656 · Note