Vulnerability · Published May 14, 2021 · Assigned by GitHub_M

CVE-2021-29551OOB read in `MatrixTriangularSolve`

Low 2.5

In plain English

A low-severity out-of-bounds read 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 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.2%top 87.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

TensorFlow is an end-to-end open source platform for machine learning. The implementation of `MatrixTriangularSolve`(https://github.com/tensorflow/tensorflow/blob/8cae746d8449c7dda5298327353d68613f16e798/tensorflow/core/kernels/linalg/matrix_triangular_solve_op_impl.h#L160-L240) fails to terminate kernel execution if one validation condition fails. 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

EcosystemPackageFixed inAdvisory
PyPItensorflow2.3.3GHSA-vqw6-72r7-fgw7
PyPItensorflow2.4.2GHSA-vqw6-72r7-fgw7
PyPItensorflow2.1.4GHSA-vqw6-72r7-fgw7
PyPItensorflow2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3PYSEC-2021-188
PyPItensorflow2.2.3GHSA-vqw6-72r7-fgw7
PyPItensorflow-cpu2.4.2GHSA-vqw6-72r7-fgw7
PyPItensorflow-cpu2.1.4GHSA-vqw6-72r7-fgw7
PyPItensorflow-cpu2.2.3GHSA-vqw6-72r7-fgw7
PyPItensorflow-cpu2.3.3GHSA-vqw6-72r7-fgw7
PyPItensorflow-cpu2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3PYSEC-2021-479
PyPItensorflow-gpu2.3.3GHSA-vqw6-72r7-fgw7
PyPItensorflow-gpu2.4.2GHSA-vqw6-72r7-fgw7
PyPItensorflow-gpu2.1.4GHSA-vqw6-72r7-fgw7
PyPItensorflow-gpu2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3PYSEC-2021-677
PyPItensorflow-gpu2.2.3GHSA-vqw6-72r7-fgw7

Affected products (as reported)

VendorProductVersions
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-125 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References