CVE-2021-41204: google tensorflow Access of Uninitialized Pointer
Vulnerability summary
CVE-2021-41204 is a medium (CVSS 5.5) Access of Uninitialized Pointer vulnerability in google tensorflow. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3% of scored vulnerabilities.
Timeline
- 05-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · PypiEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.14%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.14% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
PyPI3 products
- tensorflow≥ 2.6.0, < 2.6.1 | ≥ 2.5.0, < 2.5.2 | < 2.4.4 | < 7731e8dfbe4a56773be5dc94d631611211156659 | ≥ 2.7.0rc0, < 2.7.0
- tensorflow-cpu≥ 2.6.0, < 2.6.1 | ≥ 2.5.0, < 2.5.2 | < 2.4.4 | < 7731e8dfbe4a56773be5dc94d631611211156659 | ≥ 2.7.0rc0, < 2.7.0
- tensorflow-gpu≥ 2.6.0, < 2.6.1 | ≥ 2.5.0, < 2.5.2 | < 2.4.4 | < 7731e8dfbe4a56773be5dc94d631611211156659 | ≥ 2.7.0rc0, < 2.7.0
Google1 product
- tensorflow< 2.4.4 | ≥ 2.5.0, < 2.5.2 | ≥ 2.6.0, < 2.6.1
Tensorflow1 product
- tensorflow≥ 2.6.0, < 2.6.1 | ≥ 2.5.0, < 2.5.1 | < 2.4.4
3 vendors · 5 products
References
7 links- github.com/tensorflow/tensorflow/security/advisories/GHSA-786j-5qwq-r36xX Refsource CONFIRMWEBAdvisoryThird Party Advisory
- github.com/tensorflow/tensorflow/commit/7731e8dfbe4a56773be5dc94d631611211156659X Refsource MISCWEBFIXThird Party Advisory