CVE-2021-41220
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
TensorFlow is an open source platform for machine learning. In affected versions the async implementation of `CollectiveReduceV2` suffers from a memory leak and a use after free. This occurs due to the asynchronous computation and the fact that objects that have been `std::move()`d from are still accessed. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, as this version is the only one that is also affected.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-41220
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.6.1-1 | |
| debian | forky | fixed | 0 |
| debian | sid | fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | tensorflow | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow-cpu | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow-gpu | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow-cpu | <ca38dab9d3ee66c5de06f11af9a4b1200da5ef75||>=2.7.0rc0,<2.7.0 | ca38dab9d3ee66c5de06f11af9a4b1200da5ef75 |
| PyPI | tensorflow | <ca38dab9d3ee66c5de06f11af9a4b1200da5ef75||>=2.7.0rc0,<2.7.0 | ca38dab9d3ee66c5de06f11af9a4b1200da5ef75 |
| PyPI | tensorflow-gpu | <ca38dab9d3ee66c5de06f11af9a4b1200da5ef75||>=2.7.0rc0,<2.7.0 | ca38dab9d3ee66c5de06f11af9a4b1200da5ef75 |
References
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-gpfh-jvf9-7wg5
- https://nvd.nist.gov/vuln/detail/CVE-2021-41220
- https://github.com/tensorflow/tensorflow/commit/ca38dab9d3ee66c5de06f11af9a4b1200da5ef75
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-629.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-827.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-412.yaml
- https://github.com/tensorflow/tensorflow
- https://security-tracker.debian.org/tracker/CVE-2021-41220
Verify integrity in audit chain (admin only). AS-IS.