CVE-2021-41226

Description

TensorFlow is an open source platform for machine learning. In affected versions the implementation of `SparseBinCount` is vulnerable to a heap OOB access. This is because of missing validation between the elements of the `values` argument and the shape of the sparse output. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

How to fix CVE-2021-41226

To remediate CVE-2021-41226, upgrade the affected package to a fixed version below.

• —upgrade to 2.4.4 or later
• —upgrade to 2.6.1 or later
• —upgrade to f410212e373eb2aec4c9e60bf3702eba99a38aba or later
• —upgrade to f410212e373eb2aec4c9e60bf3702eba99a38aba or later
• —upgrade to 2.6.1 or later
• —upgrade to f410212e373eb2aec4c9e60bf3702eba99a38aba or later
• —upgrade to 2.6.1 or later

Is CVE-2021-41226 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

• from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1
• >= 2.6.0, < 2.6.1
• from 0, < f410212e373eb2aec4c9e60bf3702eba99a38aba | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
• from 0, < f410212e373eb2aec4c9e60bf3702eba99a38aba | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
• >= 2.6.0, < 2.6.1
• from 0, < f410212e373eb2aec4c9e60bf3702eba99a38aba | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
• >= 2.6.0, < 2.6.1

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-41226
• PATCHgithub.com/tensorflow/tensorflow
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-635.yaml
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-833.yaml