Vulnerability Details CVE-2021-41213
TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutually recursive. This occurs due to using a non-reentrant `Lock` Python object. Loading any model which contains mutually recursive functions is vulnerable. An attacker can cause denial of service by causing users to load such models and calling a recursive `tf.function`, although this is not a frequent scenario. 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 24.6%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.3
References
- https://github.com/tensorflow/tensorflow/commit/afac8158d43691661ad083f6dd9e56f327c1dcb7
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-h67m-xg8f-fxcf
- https://github.com/tensorflow/tensorflow/commit/afac8158d43691661ad083f6dd9e56f327c1dcb7
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-h67m-xg8f-fxcf
Products affected by CVE-2021-41213
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cpe:2.3:a:google:tensorflow:2.4.0
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cpe:2.3:a:google:tensorflow:2.4.1
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cpe:2.3:a:google:tensorflow:2.4.2
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cpe:2.3:a:google:tensorflow:2.4.3
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cpe:2.3:a:google:tensorflow:2.5.0
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cpe:2.3:a:google:tensorflow:2.5.1
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cpe:2.3:a:google:tensorflow:2.6.0
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cpe:2.3:a:google:tensorflow:2.7.0