What’s Vulnerable › Vulnerabilities

CVE-2021-41198: Overflow/crash in `tf.tile` when tiling tensor is large

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-05 · updated 2026-06-17
• Weakness: CWE-190

Description

TensorFlow is an open source platform for machine learning. In affected versions if `tf.tile` is called with a large input argument then the TensorFlow process will crash due to a `CHECK`-failure caused by an overflow. The number of elements in the output tensor is too much for the `int64_t` type and the overflow is detected via a `CHECK` statement. This aborts the process. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Affected products

• tensorflow: before 2.4.4; from 2.5.0 before 2.5.2; from 2.6.0 before 2.6.1 — fixed in 2.4.4, 2.5.2, 2.6.1

How to fix

Upgrade to a fixed version: tensorflow 2.4.4, 2.5.2, 2.6.1. Check the vendor advisory for mitigations.

References

• https://github.com/tensorflow/tensorflow/commit/9294094df6fea79271778eb7e7ae1bad8b5ef98f
• https://github.com/tensorflow/tensorflow/issues/46911
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2p25-55c9-h58q
• https://github.com/tensorflow/tensorflow/commit/9294094df6fea79271778eb7e7ae1bad8b5ef98f
• https://github.com/tensorflow/tensorflow/issues/46911
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2p25-55c9-h58q

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