NULL pointer dereference in Google Tensorflow
CVE-2021-41215
TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `DeserializeSparse` can trigger a null pointer dereference. This is because the shape inference function assumes that the `serialize_sparse` tensor is a tensor with positive rank (and having `3` as the last dimension). 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Google Tensorflow — versions 2.6.0
- Tensorflow — versions >= 2.6.0, < 2.6.1, >= 2.5.0, < 2.5.2, < 2.4.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/tensorflow/tensorflow/security/advisories/GHSA-x3v8-c8qx-3j3r (Exploit, Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/d3738dd70f1c9ceb547258cbb82d853da8771850 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41215?
- CVE-2021-41215 is a medium-severity vulnerability in Google Tensorflow, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2021-11-05.
- How severe is CVE-2021-41215?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-41215 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.