CVE-2021-37657

CVSS V2 Medium 4.6 CVSS V3 High 7.8
Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause undefined behavior via binding a reference to null pointer in all operations of type `tf.raw_ops.MatrixDiagV*`. The [implementation](https://github.com/tensorflow/tensorflow/blob/84d053187cb80d975ef2b9684d4b61981bca0c41/tensorflow/core/kernels/linalg/matrix_diag_op.cc) has incomplete validation that the value of `k` is a valid tensor. We have check that this value is either a scalar or a vector, but there is no check for the number of elements. If this is an empty tensor, then code that accesses the first element of the tensor is wrong. We have patched the issue in GitHub commit f2a673bd34f0d64b8e40a551ac78989d16daad09. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
Overview
  • CVE ID
  • CVE-2021-37657
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-12T21:15:08
  • Last Modified Date
  • 2021-08-18T14:08:54
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* 1 OR 2.3.0 2.3.4
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* 1 OR 2.4.0 2.4.3
cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:* 1 OR
cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.6
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
History
Created Old Value New Value Data Type Notes
2022-05-10 06:56:49 Added to TrackCVE
2022-12-05 08:07:45 2021-08-12T21:15Z 2021-08-12T21:15:08 CVE Published Date updated
2022-12-05 08:07:46 2021-08-18T14:08:54 CVE Modified Date updated
2022-12-05 08:07:46 Analyzed Vulnerability Status updated