Executive Summary

Informations
Name CVE-2020-15265 First vendor Publication 2020-10-21
Vendor Cve Last vendor Modification 2021-08-17

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In Tensorflow before version 2.4.0, an attacker can pass an invalid `axis` value to `tf.quantization.quantize_and_dequantize`. This results in accessing a dimension outside the rank of the input tensor in the C++ kernel implementation. However, dim_size only does a DCHECK to validate the argument and then uses it to access the corresponding element of an array. Since in normal builds, `DCHECK`-like macros are no-ops, this results in segfault and access out of bounds of the array. The issue is patched in eccb7ec454e6617738554a255d77f08e60ee0808 and TensorFlow 2.4.0 will be released containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15265

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 5

Sources (Detail)

Source Url
CONFIRM https://github.com/tensorflow/tensorflow/security/advisories/GHSA-rrfp-j2mp-hq9c
MISC https://github.com/tensorflow/tensorflow/commit/eccb7ec454e6617738554a255d77f...
https://github.com/tensorflow/tensorflow/issues/42105

Alert History

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Date Informations
2021-08-17 21:23:24
  • Multiple Updates
2021-08-17 17:22:59
  • Multiple Updates
2021-05-05 01:38:11
  • Multiple Updates
2021-05-04 13:46:15
  • Multiple Updates
2021-04-22 02:58:43
  • Multiple Updates
2020-12-15 01:28:45
  • Multiple Updates
2020-11-03 09:22:51
  • Multiple Updates
2020-10-22 17:23:09
  • Multiple Updates
2020-10-22 05:22:59
  • First insertion