CVE-2021-29545

Advisory

Tensorflow-gpu 2.1.4, 2.2.3, 2.3.3, 2.4.2, and 2.5.0 include a fix for CVE-2021-29545: An attacker can trigger a denial of service via a 'CHECK'-fail in converting sparse tensors to CSR Sparse matrices. This is because the implementation (https://github.com/tensorflow/tensorflow/blob/800346f2c03a27e182dd4fba48295f65e7790739/tensorflow/core/kernels/sparse/kernels.cc#L66) does a double redirection to access an element of an array allocated on the heap. If the value at 'indices(i, 0)' is such that 'indices(i, 0) + 1' is outside the bounds of 'csr_row_ptr', this results in writing outside of bounds of heap allocated data.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

This vulnerability has no description

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29545
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hmg3-c7xj-6qwm
• https://github.com/tensorflow/tensorflow/commit/1e922ccdf6bf46a3a52641f99fd47d54c1decd13