CVE-2021-29567

Advisory

Intel-tensorflow versions 2.1.4, 2.2.3, 2.3.3, 2.4.2 and 2.5.0 include a fix for CVE-2021-29567: Due to lack of validation in 'tf.raw_ops.SparseDenseCwiseMul', an attacker can trigger denial of service via 'CHECK'-fails or accesses to outside the bounds of heap allocated data. Since the implementation (https://github.com/tensorflow/tensorflow/blob/38178a2f7a681a7835bb0912702a134bfe3b4d84/tensorflow/core/kernels/sparse_dense_binary_op_shared.cc#L68-L80), it only validates the rank of the input arguments but no constraints between dimensions (https://www.tensorflow.org/api_docs/python/tf/raw_ops/SparseDenseCwiseMul) and an attacker can abuse them to trigger internal 'CHECK' assertions (and cause program termination, denial of service) or to write to memory outside of bounds of heap allocated tensor buffers.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29567
• https://github.com/tensorflow/tensorflow/commit/7ae2af34087fb4b5c8915279efd03da3b81028bc
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wp3c-xw9g-gpcg