PYSEC-2021-405
Record from OSV · Published November 5, 2021
tensorflow is fixed in afac8158d43691661ad083f6dd9e56f327c1dcb7, 2.7.0, 2.6.1 and 2 more (PyPI)
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| tensorflow | PyPI | afac8158d43691661ad083f6dd9e56f327c1dcb7, 2.7.0, 2.6.1, 2.5.2, 2.4.4 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | tensorflow | 0, 0, 2.5.0 |
Timeline
- Nov 5, 2021 CVE Published
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