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CVE-2020-15190

5.3 · MEDIUM

In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, the `tf.raw_ops.Switch` operation takes as input a tensor and a boolean and outputs two tensors.

Published Sep 25, 2020CWE-20EPSS 0.94%

Overview

CVE-2020-15190 is a medium-severity vulnerability. It was published on September 25, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, the `tf.raw_ops.Switch` operation takes as input a tensor and a boolean and outputs two tensors. Depending on the boolean value, one of the tensors is exactly the input tensor whereas the other one should be an empty tensor. However, the eager runtime traverses all tensors in the output. Since only one of the tensors is defined, the other one is `nullptr`, hence we are binding a reference to `nullptr`. This is undefined behavior and reported as an error if compiling with `-fsanitize=null`. In this case, this results in a segmentation fault The issue is patched in commit da8558533d925694483d2c136a9220d6d49d843c, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlGitHubgithub.com/tensorflow/tensorflow/commit/da8558533d925694483d2c136a9220d6d49d843cGitHubgithub.com/tensorflow/tensorflow/releases/tag/v2.3.1GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-4g9f-63rx-5cw4Reflists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlGitHubgithub.com/tensorflow/tensorflow/commit/da8558533d925694483d2c136a9220d6d49d843cGitHubgithub.com/tensorflow/tensorflow/releases/tag/v2.3.1GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-4g9f-63rx-5cw4

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15190?

CVE-2020-15190 is a medium-severity vulnerability. It was published on September 25, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2020-15190?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-15190?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-15190?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15190 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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