CVE-2021-41220
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
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 2.6.1-1 |
Debian Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| sid | Fixed | 0 |
| forky | 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
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.