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Vulnerability Details :

CVE-2021-37689

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-12 Aug, 2021 | 22:00
Updated At-04 Aug, 2024 | 01:23
Rejected At-
Credits

Null pointer dereference in TensorFlow Lite MLIR optimizations

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can craft a TFLite model that would trigger a null pointer dereference, which would result in a crash and denial of service. This is caused by the MLIR optimization of `L2NormalizeReduceAxis` operator. The [implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/compiler/mlir/lite/transforms/optimize.cc#L67-L70) unconditionally dereferences a pointer to an iterator to a vector without checking that the vector has elements. We have patched the issue in GitHub commit d6b57f461b39fd1aa8c1b870f1b974aac3554955. 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 | 22:00
Updated At:04 Aug, 2024 | 01:23
Rejected At:
▼CVE Numbering Authority (CNA)
Null pointer dereference in TensorFlow Lite MLIR optimizations

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can craft a TFLite model that would trigger a null pointer dereference, which would result in a crash and denial of service. This is caused by the MLIR optimization of `L2NormalizeReduceAxis` operator. The [implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/compiler/mlir/lite/transforms/optimize.cc#L67-L70) unconditionally dereferences a pointer to an iterator to a vector without checking that the vector has elements. We have patched the issue in GitHub commit d6b57f461b39fd1aa8c1b870f1b974aac3554955. 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-476CWE-476: NULL Pointer Dereference
Type: CWE
CWE ID: CWE-476
Description: CWE-476: NULL Pointer Dereference
Metrics
VersionBase scoreBase severityVector
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-wf5p-c75w-w3wh
x_refsource_CONFIRM
https://github.com/tensorflow/tensorflow/commit/d6b57f461b39fd1aa8c1b870f1b974aac3554955
x_refsource_MISC
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wf5p-c75w-w3wh
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/tensorflow/tensorflow/commit/d6b57f461b39fd1aa8c1b870f1b974aac3554955
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-wf5p-c75w-w3wh
x_refsource_CONFIRM
x_transferred
https://github.com/tensorflow/tensorflow/commit/d6b57f461b39fd1aa8c1b870f1b974aac3554955
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wf5p-c75w-w3wh
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/tensorflow/tensorflow/commit/d6b57f461b39fd1aa8c1b870f1b974aac3554955
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 | 22:15
Updated At:18 Aug, 2021 | 21:15

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can craft a TFLite model that would trigger a null pointer dereference, which would result in a crash and denial of service. This is caused by the MLIR optimization of `L2NormalizeReduceAxis` operator. The [implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/compiler/mlir/lite/transforms/optimize.cc#L67-L70) unconditionally dereferences a pointer to an iterator to a vector without checking that the vector has elements. We have patched the issue in GitHub commit d6b57f461b39fd1aa8c1b870f1b974aac3554955. 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
Primary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Secondary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 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-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/d6b57f461b39fd1aa8c1b870f1b974aac3554955security-advisories@github.com
Patch
Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wf5p-c75w-w3whsecurity-advisories@github.com
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/commit/d6b57f461b39fd1aa8c1b870f1b974aac3554955
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wf5p-c75w-w3wh
Source: security-advisories@github.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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