Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29545Heap buffer overflow in `SparseTensorToCSRSparseMatrix`
Low 2.5
In plain English
A low-severity security flaw in tensorflow from tensorflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
TensorFlow is an end-to-end open source platform for machine learning. 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. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.3 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow | 2.4.2 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow | 2.1.4 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-182 |
| PyPI | tensorflow | 2.2.3 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-cpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-473 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-hmg3-c7xj-6qwm |
| PyPI | tensorflow-gpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-671 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-hmg3-c7xj-6qwm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | < 2.1.4>= 2.2.0, < 2.2.3>= 2.3.0, < 2.3.3>= 2.4.0, < 2.4.2 |
Weakness: CWE-131 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L