CVE-2020-15204: Segfault in Tensorflow
(updated )
In eager mode, TensorFlow does not set the session state. Hence, calling tf.raw_ops.GetSessionHandle or tf.raw_ops.GetSessionHandleV2 results in a null pointer dereference:
https://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/session_ops.cc#L45
In the above snippet, in eager mode, ctx->session_state() returns nullptr. Since code immediately dereferences this, we get a segmentation fault.
References
- github.com/advisories/GHSA-q8gv-q7wr-9jf8
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-284.yaml
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-319.yaml
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-127.yaml
- github.com/tensorflow/tensorflow
- github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1
- github.com/tensorflow/tensorflow/releases/tag/v2.3.1
- github.com/tensorflow/tensorflow/security/advisories/GHSA-q8gv-q7wr-9jf8
- nvd.nist.gov/vuln/detail/CVE-2020-15204
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