Vulnerability Name:

CVE-2020-15206 (CCN-188945)

Assigned:2020-06-25
Published:2020-06-25
Updated:2021-09-16
Summary:In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, changing the TensorFlow's `SavedModel` protocol buffer and altering the name of required keys results in segfaults and data corruption while loading the model. This can cause a denial of service in products using `tensorflow-serving` or other inference-as-a-service installments. Fixed were added in commits f760f88b4267d981e13f4b302c437ae800445968 and fcfef195637c6e365577829c4d67681695956e7d (both going into TensorFlow 2.2.0 and 2.3.0 but not yet backported to earlier versions). However, this was not enough, as #41097 reports a different failure mode. The issue is patched in commit adf095206f25471e864a8e63a0f1caef53a0e3a6, 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:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
9.0 Critical (CCN 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 (CCN 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
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.6 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-15206

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

Source: XF
Type: UNKNOWN
tensorflow-cve202015206-dos(188945)

Source: MISC
Type: Patch, Third Party Advisory, Vendor Advisory
https://github.com/tensorflow/tensorflow/commit/adf095206f25471e864a8e63a0f1caef53a0e3a6

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

Source: CCN
Type: TensorFlow Lite GIT Repository
Incomplete validation in TensorFlow's SavedModel's constant nodes causes segfaults

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-w5gh-2wr2-pm6g

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-2020-15206

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:tensorflow:*:*:*:*:-:*:*:* (Version < 1.15.4)
  • OR cpe:/a:google:tensorflow:*:*:*:*:-:*:*:* (Version >= 2.0.0 and < 2.0.3)
  • OR cpe:/a:google:tensorflow:*:*:*:*:-:*:*:* (Version >= 2.1.0 and < 2.1.2)
  • OR cpe:/a:google:tensorflow:*:*:*:*:-:*:*:* (Version >= 2.2.0 and < 2.2.1)
  • OR cpe:/a:google:tensorflow:*:*:*:*:-:*:*:* (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:202015206
    V
    		CVE-2020-15206
    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