CVE-2021-29541

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a dereference of a null pointer in `tf.raw_ops.StringNGrams`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/1cdd4da14282210cc759e468d9781741ac7d01bf/tensorflow/core/kernels/string_ngrams_op.cc#L67-L74) does not fully validate the `data_splits` argument. This would result in `ngrams_data`(https://github.com/tensorflow/tensorflow/blob/1cdd4da14282210cc759e468d9781741ac7d01bf/tensorflow/core/kernels/string_ngrams_op.cc#L106-L110) to be a null pointer when the output would be computed to have 0 or negative size. Later writes to the output tensor would then cause a null pointer dereference. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Link	Resource
https://github.com/tensorflow/tensorflow/commit/ba424dd8f16f7110eea526a8086f1a155f14f22b	Patch Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xqfj-35wv-m3cr	Exploit Patch

Configuration 1

cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*

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Published : 2021-05-14 08:15

Updated : 2021-05-20 04:21

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NVD link : CVE-2021-29541

Mitre link : CVE-2021-29541

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CWE-476