CVE-2021-41204

Segfault while copying constant resource tensor

MEDIUM

5.5

CVSS Score

Published: November 5, 2021 at 08:45 PM UTC

Updated: June 17, 2026 at 04:08 AM UTC

2 products affected across 2 vendorsTensorflowTensorFlow

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

Description

TensorFlow is an open source platform for machine learning. In affected versions during TensorFlow's Grappler optimizer phase, constant folding might attempt to deep copy a resource tensor. This results in a segfault, as these tensors are supposed to not change. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tensorflow · Google

95%

v < 2.4.42.5.0 ≤ v < 2.5.22.6.0 ≤ v < 2.6.1

Affected range stops below 2.4.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.5.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.1, so it looks safe — our inference, not a vendor statement

TensorFlow · Tensorflow

60%

v < 2.4.4v < 2.5.1v < 2.6.1

Affected range stops below 2.4.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.5.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://github.com/tensorflow/tensorflow/commit/7731e8dfbe4a56773be5dc94d631611211156659

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-786j-5qwq-r36x

CVSS

5.5MEDIUMGitHub_M

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-824

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