Vulnerability Name:

CVE-2021-37675 (CCN-207475)

Assigned:2021-08-11
Published:2021-08-11
Updated:2021-08-18
Summary:TensorFlow is an end-to-end open source platform for machine learning. In affected versions most implementations of convolution operators in TensorFlow are affected by a division by 0 vulnerability where an attacker can trigger a denial of service via a crash. The shape inference [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/framework/common_shape_fns.cc#L577) is missing several validations before doing divisions and modulo operations. We have patched the issue in GitHub commit 8a793b5d7f59e37ac7f3cd0954a750a2fe76bad4. 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.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-369
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-37675

Source: XF
Type: UNKNOWN
tensorflow-cve202137675-dos(207475)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/8a793b5d7f59e37ac7f3cd0954a750a2fe76bad4

Source: CCN
Type: TensorFlow GIT Repository
Division by 0 in most convolution operators

Source: CONFIRM
Type: Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9c8h-2mv3-49ww

Source: CCN
Type: IBM Security Bulletin 6523816 (Watson Discovery)
IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in TensorFlow

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:tensorflow:*:*:*:*:*:*:*:* (Version >= 2.3.0 and < 2.3.4)
  • OR cpe:/a:google:tensorflow:*:*:*:*:*:*:*:* (Version >= 2.4.0 and < 2.4.3)
  • OR cpe:/a:google:tensorflow:2.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
  • OR cpe:/a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:google:tensorflow:-:*:*:*:-:*:*:*
  • AND
  • cpe:/a:ibm:watson_discovery:2.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:watson_discovery:2.2.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    google tensorflow *
    google tensorflow *
    google tensorflow 2.5.0
    google tensorflow 2.6.0 rc0
    google tensorflow 2.6.0 rc1
    google tensorflow 2.6.0 rc2
    tensorflow tensorflow -
    ibm watson discovery 2.0.0
    ibm watson discovery 2.2.1