CVE-2021-29518

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Source
https://cve.org/CVERecord?id=CVE-2021-29518
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29518.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-29518
Aliases
Related
Published
2021-05-14T20:15:11.437Z
Modified
2026-02-21T01:29:40.566415Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

TensorFlow is an end-to-end open source platform for machine learning. In eager mode (default in TF 2.0 and later), session operations are invalid. However, users could still call the raw ops associated with them and trigger a null pointer dereference. The implementation(https://github.com/tensorflow/tensorflow/blob/eebb96c2830d48597d055d247c0e9aebaea94cd5/tensorflow/core/kernels/session_ops.cc#L104) dereferences the session state pointer without checking if it is valid. Thus, in eager mode, ctx->session_state() is nullptr and the call of the member function is undefined behavior. 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.

References

Affected packages

Git / github.com/tensorflow/tensorflow

Affected ranges

Type
GIT
Repo
https://github.com/tensorflow/tensorflow
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ff70c47a396ef1e3cb73c90513da4f5cb71bebba
Introduced
2b96f3662bd776e277f86997659e61046b56c315
Fixed
cfe0c80169ae984bcdc99ff6de7444164aaa8e07
Introduced
582c8d236cb079023657287c318ff26adb239002
Fixed
1923123d32ea41d92b70a27a3f6ecf0763b56f6c
Introduced
b36436b087bd8e8701ef51718179037cccdfc26e
Fixed
3929ffacfbef7c431e8397920d040aaf47acff19

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29518.json"
vanir_signatures 
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        "id": "CVE-2021-29518-13602c37",
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        "source": "https://github.com/tensorflow/tensorflow/commit/ff70c47a396ef1e3cb73c90513da4f5cb71bebba",
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