CVE-2021-37649

TensorFlow is an end-to-end open source platform for machine learning. The code for `tf.raw_ops.UncompressElement` can be made to trigger a null pointer dereference. The [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/data/experimental/compression_ops.cc#L50-L53) obtains a pointer to a `CompressedElement` from a `Variant` tensor and then proceeds to dereference it for decompressing. There is no check that the `Variant` tensor contained a `CompressedElement`, so the pointer is actually `nullptr`. We have patched the issue in GitHub commit 7bdf50bb4f5c54a4997c379092888546c97c3ebd. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

Link	Resource
https://github.com/tensorflow/tensorflow/commit/7bdf50bb4f5c54a4997c379092888546c97c3ebd	Patch Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-6gv8-p3vj-pxvr	Third Party Advisory

Configuration 1

cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:*

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Published : 2021-08-12 07:15

Updated : 2021-08-18 04:26

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NVD link : CVE-2021-37649

Mitre link : CVE-2021-37649

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CWE-476