Null-dereference in Tensorflow
High6.5CVE-2022-23577 · Published Feb 10, 2022 · updated Jul 13, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| tensorflow PyPI | < 2.5.3 | 2.5.3 |
| >= 2.6.0, < 2.6.3 | 2.6.3 | |
| >= 2.7.0, < 2.7.1 | 2.7.1 |
Details and references
### Impact The [implementation of `GetInitOp`](https://github.com/tensorflow/tensorflow/blob/a1320ec1eac186da1d03f033109191f715b2b130/tensorflow/cc/saved_model/loader_util.cc#L31-L61) is vulnerable to a crash caused by dereferencing a null pointer: ```cc const auto& init_op_sig_it = meta_graph_def.signature_def().find(kSavedModelInitOpSignatureKey); if (init_op_sig_it != sig_def_map.end()) { *init_op_name = init_op_sig_it->second.outputs() .find(kSavedModelInitOpSignatureKey) ->second.name(); return Status::OK(); } ``` Here, we have a nested map and we assume that if the first `.find` succeeds then so would be the search in the internal map. However, the maps are built based on the `SavedModel` protobuf format and a malicious user can alter that on disk before loading to cause the second `.find` to return `nullptr`. ### Patches We have patched the issue in GitHub commit [4f38b1ac8e42727e18a2f0bde06d3bee8e77b250](https://github.com/tensorflow/tensorflow/commit/4f38b1ac8e42727e18a2f0bde06d3bee8e77b250). The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range. ### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-476
- Also known as
- BIT-tensorflow-2022-23577, CVE-2022-23577, PYSEC-2022-141, PYSEC-2022-86, PYSEC-2026-3135
- github.com/tensorflow/tensorflow/security/advisories/GHSA-8cxv-76p7-jxwr
- nvd.nist.gov/vuln/detail/CVE-2022-23577
- github.com/tensorflow/tensorflow/commit/4f38b1ac8e42727e18a2f0bde06d3bee8e77b250
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2022-86.yaml
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2022-141.yaml
- github.com/tensorflow/tensorflow
- github.com/tensorflow/tensorflow/blob/a1320ec1eac186da1d03f033109191f715b2b130/tensorflow/cc/saved_model/loader_util.cc#L31-L61
More TensorFlow advisories
All TensorFlow| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Feb 92022 | Use after free in `DecodePng` kernel CVE-2022-23584High7.6fixed in 2.5.3, 2.6.3, 2.7.1 | High7.6 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Out of bounds write in Tensorflow CVE-2022-23566High8.8fixed in 2.5.3, 2.6.3, 2.7.1 | High8.8 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Reachable Assertion in Tensorflow CVE-2022-23564High6.5fixed in 2.5.3, 2.6.3, 2.7.1 | High6.5 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Insecure temporary file in Tensorflow CVE-2022-23563High7.1fixed in 2.5.3, 2.6.3, 2.7.1 | High7.1 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Integer overflow in Tensorflow CVE-2022-23562High7.6fixed in 2.5.3, 2.6.3, 2.7.1 | High7.6 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Out of bounds write in TFLite CVE-2022-23561High8.8fixed in 2.5.3, 2.6.3, 2.7.1 | High8.8 | 2.5.3, 2.6.3, 2.7.1 |