Vulnerability Name:

CVE-2020-15207 (CCN-188958)

Assigned:2020-06-25
Published:2020-06-25
Updated:2021-11-18
Summary:In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds. If the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption. The issue is patched in commit 2d88f470dea2671b430884260f3626b1fe99830a, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
CVSS v3 Severity:9.0 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
7.8 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.7 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H)
7.6 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-15207

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

Source: XF
Type: UNKNOWN
tensorflow-cve202015207-dos(188958)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1fe99830a

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

Source: CCN
Type: TensorFlow Lite GIT Repository
Segfault and data corruption caused by negative indexing in TFLite

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q4qf-3fc6-8x34

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-2020-15207

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:tensorflow:*:*:*:*:lite:*:*:* (Version < 1.15.4)
  • OR cpe:/a:google:tensorflow:*:*:*:*:lite:*:*:* (Version >= 2.0.0 and < 2.0.3)
  • OR cpe:/a:google:tensorflow:*:*:*:*:lite:*:*:* (Version >= 2.1.0 and < 2.1.2)
  • OR cpe:/a:google:tensorflow:*:*:*:*:lite:*:*:* (Version >= 2.2.0 and < 2.2.1)
  • OR cpe:/a:google:tensorflow:*:*:*:*:lite:*:*:* (Version >= 2.3.0 and < 2.3.1)

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

  • Configuration CCN 1:
  • cpe:/a:google:tensorflow:1.15.3:*:*:*:-:*:*:*
  • OR cpe:/a:google:tensorflow:2.0.2:*:*:*:-:*:*:*
  • OR cpe:/a:google:tensorflow:2.1.1:*:*:*:-:*:*:*
  • OR 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:202015207
    V
    CVE-2020-15207
    2022-06-30
    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 *
    google tensorflow *
    google tensorflow *
    google tensorflow *
    google tensorflow *
    opensuse leap 15.2
    google tensorflow 1.15.3
    google tensorflow 2.0.2
    google tensorflow 2.1.1
    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