Vulnerability Name:

CVE-2020-15193 (CCN-188922)

Assigned:2020-06-25
Published:2020-06-25
Updated:2021-11-18
Summary:In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of `dlpack.to_dlpack` can be made to use uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python object instead of a tensor. The uninitialized memory address is due to a `reinterpret_cast` Since the `PyObject` is a Python object, not a TensorFlow Tensor, the cast to `EagerTensor` fails. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L)
6.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): Low
7.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): Low
CVSS v2 Severity:5.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Partial
Vulnerability Type:CWE-908
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-15193

Source: SUSE
Type: Mailing List, Third Party Advisory
openSUSE-SU-2020:1766

Source: XF
Type: UNKNOWN
tensorflow-cve202015193-dos(188922)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8

Source: MISC
Type: Third Party Advisory
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1

Source: CCN
Type: TensorFlow Lite GIT Repository
Memory corruption in dlpack.to_dlpack

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-rjjg-hgv6-h69v

Source: CCN
Type: IBM Security Bulletin 6357195 (Watson Machine Learning Community Edition)
Numerous CVE entires for TensorFlow in Watson Machine Learning Community Edition

Source: CCN
Type: IBM Security Bulletin 6364979 (Watson Discovery)
IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in TensorFlow

Source: CCN
Type: IBM Security Bulletin 6434211 (Watson Machine Learning)
Tensor Flow security vulnerabilities on IBM Watson Machine Learning on CP4D

Source: CCN
Type: IBM Security Bulletin 6445773 (Watson Machine Learning Server on-prem)
Tensor Flow security vulnerabilities on IBM Watson Machine Learning Server

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-15193

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:tensorflow:2.2.0:*:*:*:-:*:*:*
  • OR cpe:/a:google:tensorflow:2.3.0:*:*:*:-:*:*:*

  • Configuration 2:
  • cpe:/o:opensuse:leap:15.2:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:tensorflow:tensorflow:2.2.0:*:*:*:-:*:*:*
  • OR cpe:/a:tensorflow:tensorflow:2.3.0:*:*:*:-:*:*:*
  • AND
  • cpe:/a:ibm:watson_discovery:2.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:watson_machine_learning:1.6.2:*:community:*:*:*:*:*
  • OR cpe:/a:ibm:watson_machine_learning:1.7.0:*:community:*:*:*:*:*
  • OR cpe:/a:ibm:watson_discovery:2.1.4:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:202015193
    V
    CVE-2020-15193
    2022-05-22
    oval:org.opensuse.security:def:64780
    P
    Security update for krb5 (Moderate)
    2021-10-18
    oval:org.opensuse.security:def:63125
    P
    kernel-azure-5.3.18-36.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63335
    P
    libapr-util1-dbd-mysql-1.6.1-16.43 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63129
    P
    python3-aiohttp-3.4.4-3.6.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63132
    P
    terraform-0.13.4-6.3.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:64536
    P
    Security update for cryptctl (Important)
    2021-06-23
    oval:org.opensuse.security:def:64882
    P
    Security update for umoci (Important)
    2021-06-04
    oval:org.opensuse.security:def:64672
    P
    Security update for gnutls (Important)
    2021-03-24
    oval:org.opensuse.security:def:64673
    P
    Security update for ldb (Important)
    2021-03-24
    oval:org.opensuse.security:def:63157
    P
    libcacard-devel-2.5.3-1.27 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:63628
    P
    libntfs-3g-devel-2016.2.22-3.5.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:63831
    P
    Security update for dpdk (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:75127
    P
    Security update for tensorflow2 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64940
    P
    Security update for Mesa (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:63978
    P
    Security update for samba (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:65052
    P
    Security update for gnutls (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64207
    P
    amavisd-new on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:74994
    P
    Security update for ldb, samba (Important)
    2020-12-01
    oval:org.opensuse.security:def:110822
    P
    Security update for tensorflow2 (Moderate)
    2020-10-29
    BACK
    google tensorflow 2.2.0
    google tensorflow 2.3.0
    opensuse leap 15.2
    tensorflow tensorflow 2.2.0
    tensorflow tensorflow 2.3.0
    ibm watson discovery 2.0.0
    ibm watson machine learning 1.6.2
    ibm watson machine learning 1.7.0
    ibm watson discovery 2.1.4