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Vulnerability Details :

CVE-2021-29516

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-14 May, 2021 | 19:36
Updated At-03 Aug, 2024 | 22:11
Rejected At-
Credits

Null pointer dereference via invalid Ragged Tensors

TensorFlow is an end-to-end open source platform for machine learning. Calling `tf.raw_ops.RaggedTensorToVariant` with arguments specifying an invalid ragged tensor results in a null pointer dereference. The implementation of `RaggedTensorToVariant` operations(https://github.com/tensorflow/tensorflow/blob/904b3926ed1c6c70380d5313d282d248a776baa1/tensorflow/core/kernels/ragged_tensor_to_variant_op.cc#L39-L40) does not validate that the ragged tensor argument is non-empty. Since `batched_ragged` contains no elements, `batched_ragged.splits` is a null vector, thus `batched_ragged.splits(0)` will result in dereferencing `nullptr`. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, 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:14 May, 2021 | 19:36
Updated At:03 Aug, 2024 | 22:11
Rejected At:
▼CVE Numbering Authority (CNA)
Null pointer dereference via invalid Ragged Tensors

TensorFlow is an end-to-end open source platform for machine learning. Calling `tf.raw_ops.RaggedTensorToVariant` with arguments specifying an invalid ragged tensor results in a null pointer dereference. The implementation of `RaggedTensorToVariant` operations(https://github.com/tensorflow/tensorflow/blob/904b3926ed1c6c70380d5313d282d248a776baa1/tensorflow/core/kernels/ragged_tensor_to_variant_op.cc#L39-L40) does not validate that the ragged tensor argument is non-empty. Since `batched_ragged` contains no elements, `batched_ragged.splits` is a null vector, thus `batched_ragged.splits(0)` will result in dereferencing `nullptr`. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Affected Products
Vendor
TensorFlowtensorflow
Product
tensorflow
Versions
Affected
  • < 2.1.4
  • >= 2.2.0, < 2.2.3
  • >= 2.3.0, < 2.3.3
  • >= 2.4.0, < 2.4.2
Problem Types
TypeCWE IDDescription
CWECWE-476CWE-476: NULL Pointer Dereference
Type: CWE
CWE ID: CWE-476
Description: CWE-476: NULL Pointer Dereference
Metrics
VersionBase scoreBase severityVector
3.12.5LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Version: 3.1
Base score: 2.5
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
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-84mw-34w6-2q43
x_refsource_CONFIRM
https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93
x_refsource_MISC
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-84mw-34w6-2q43
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93
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-84mw-34w6-2q43
x_refsource_CONFIRM
x_transferred
https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-84mw-34w6-2q43
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93
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:14 May, 2021 | 20:15
Updated At:20 May, 2021 | 16:05

TensorFlow is an end-to-end open source platform for machine learning. Calling `tf.raw_ops.RaggedTensorToVariant` with arguments specifying an invalid ragged tensor results in a null pointer dereference. The implementation of `RaggedTensorToVariant` operations(https://github.com/tensorflow/tensorflow/blob/904b3926ed1c6c70380d5313d282d248a776baa1/tensorflow/core/kernels/ragged_tensor_to_variant_op.cc#L39-L40) does not validate that the ragged tensor argument is non-empty. Since `batched_ragged` contains no elements, `batched_ragged.splits` is a null vector, thus `batched_ragged.splits(0)` will result in dereferencing `nullptr`. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, 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
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Secondary3.12.5LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Primary2.02.1LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
Type: Primary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 2.5
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Type: Primary
Version: 2.0
Base score: 2.1
Base severity: LOW
Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CPE Matches
Google LLC
google
>>tensorflow>>Versions before 2.1.4(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>Versions from 2.2.0(inclusive) to 2.2.3(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>Versions from 2.3.0(inclusive) to 2.3.3(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Google LLC
google
>>tensorflow>>Versions from 2.4.0(inclusive) to 2.4.2(exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-476Primarysecurity-advisories@github.com
CWE ID: CWE-476
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93security-advisories@github.com
Patch
Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-84mw-34w6-2q43security-advisories@github.com
Exploit
Patch
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/commit/b055b9c474cd376259dde8779908f9eeaf097d93
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-84mw-34w6-2q43
Source: security-advisories@github.com
Resource:
Exploit
Patch
Third Party Advisory

Change History

0
Information is not available yet

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