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Vulnerability Details :

CVE-2021-37678

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-12 Aug, 2021 | 23:05
Updated At-04 Aug, 2024 | 01:23
Rejected At-
Credits

Arbitrary code execution due to YAML deserialization

TensorFlow is an end-to-end open source platform for machine learning. In affected versions TensorFlow and Keras can be tricked to perform arbitrary code execution when deserializing a Keras model from YAML format. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/python/keras/saving/model_config.py#L66-L104) uses `yaml.unsafe_load` which can perform arbitrary code execution on the input. Given that YAML format support requires a significant amount of work, we have removed it for now. We have patched the issue in GitHub commit 23d6383eb6c14084a8fc3bdf164043b974818012. 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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:12 Aug, 2021 | 23:05
Updated At:04 Aug, 2024 | 01:23
Rejected At:
▼CVE Numbering Authority (CNA)
Arbitrary code execution due to YAML deserialization

TensorFlow is an end-to-end open source platform for machine learning. In affected versions TensorFlow and Keras can be tricked to perform arbitrary code execution when deserializing a Keras model from YAML format. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/python/keras/saving/model_config.py#L66-L104) uses `yaml.unsafe_load` which can perform arbitrary code execution on the input. Given that YAML format support requires a significant amount of work, we have removed it for now. We have patched the issue in GitHub commit 23d6383eb6c14084a8fc3bdf164043b974818012. 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.

Affected Products
Vendor
TensorFlowtensorflow
Product
tensorflow
Versions
Affected
  • >= 2.5.0, < 2.5.1
  • >= 2.4.0, < 2.4.3
  • < 2.3.4
Problem Types
TypeCWE IDDescription
CWECWE-502CWE-502: Deserialization of Untrusted Data
Type: CWE
CWE ID: CWE-502
Description: CWE-502: Deserialization of Untrusted Data
Metrics
VersionBase scoreBase severityVector
3.19.3CRITICAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 9.3
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5r
x_refsource_CONFIRM
https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012
x_refsource_MISC
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5r
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5r
x_refsource_CONFIRM
x_transferred
https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5r
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:12 Aug, 2021 | 23:15
Updated At:19 Aug, 2021 | 13:44

TensorFlow is an end-to-end open source platform for machine learning. In affected versions TensorFlow and Keras can be tricked to perform arbitrary code execution when deserializing a Keras model from YAML format. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/python/keras/saving/model_config.py#L66-L104) uses `yaml.unsafe_load` which can perform arbitrary code execution on the input. Given that YAML format support requires a significant amount of work, we have removed it for now. We have patched the issue in GitHub commit 23d6383eb6c14084a8fc3bdf164043b974818012. 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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Secondary3.19.3CRITICAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary2.04.6MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.3
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 4.6
Base severity: MEDIUM
Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CPE Matches
Google LLC
google
>>tensorflow>>Versions from 2.3.0(inclusive) to 2.3.4(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>Versions from 2.4.0(inclusive) to 2.4.3(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>2.5.0
cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>2.6.0
cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>2.6.0
cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>2.6.0
cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-502Primarysecurity-advisories@github.com
CWE ID: CWE-502
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012security-advisories@github.com
Patch
Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5rsecurity-advisories@github.com
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/commit/23d6383eb6c14084a8fc3bdf164043b974818012
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-r6jx-9g48-2r5r
Source: security-advisories@github.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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