CVE-2020-15190

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.

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/tensorflow/tensorflow/commit/da8558533d925694483d2c136a9220d6d49d843c	Patch Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-4g9f-63rx-5cw4	Exploit Third Party Advisory
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:google:tensorflow:::::-:::*
	cpe:2.3:a:google:tensorflow:::::-:::*
	cpe:2.3:a:google:tensorflow:::::-:::*
	cpe:2.3:a:google:tensorflow:::::-:::*
	cpe:2.3:a:google:tensorflow:::::-:::*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Information

Published : 2020-09-25 12:15

Updated : 2021-11-18 09:18

NVD link : CVE-2020-15190

Mitre link : CVE-2020-15190

JSON object : View

CWE

CWE-20

Improper Input Validation

CWE-476

NULL Pointer Dereference

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Products Affected

google

tensorflow

opensuse

leap

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