In eager mode, TensorFlow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1 does not set the session state. Hence, calling tf.raw_ops.GetSessionHandle
or tf.raw_ops.GetSessionHandleV2
results in a null pointer dereference In linked snippet, in eager mode, ctx->session_state()
returns nullptr
. Since code immediately dereferences this, we get a segmentation fault. The issue is patched in commit 9a133d73ae4b4664d22bd1aa6d654fec13c52ee1, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
{ "vanir_signatures": [ { "source": "https://github.com/tensorflow/tensorflow/commit/9a133d73ae4b4664d22bd1aa6d654fec13c52ee1", "signature_version": "v1", "deprecated": false, "target": { "file": "tensorflow/core/kernels/session_ops.cc" }, "id": "CVE-2020-15204-9ee6decc", "digest": { "line_hashes": [ "189352979120194311327371559395119878939", "240616599412011448759509449000224441154", "145066807906330921007866302987167158980", "160262667934512112962314419515803663363", "15626677433426552320500466918107972585", "248719977052199874095317382270256044896", "12019719942517677709544006141306629999", "273563587906890098515499487317187043849", "14152470903489550199196908644522954805" ], "threshold": 0.9 }, "signature_type": "Line" } ] }