Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29552CHECK-failure in `UnsortedSegmentJoin`
Low 2.5
In plain English
A low-severity security flaw in tensorflow from tensorflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
TensorFlow is an end-to-end open source platform for machine learning. An attacker can cause a denial of service by controlling the values of `num_segments` tensor argument for `UnsortedSegmentJoin`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/a2a607db15c7cd01d754d37e5448d72a13491bdb/tensorflow/core/kernels/unsorted_segment_join_op.cc#L92-L93) assumes that the `num_segments` tensor is a valid scalar. Since the tensor is empty the `CHECK` involved in `.scalar<T>()()` that checks that the number of elements is exactly 1 will be invalidated and this would result in process termination. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.3 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow | 2.4.2 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow | 2.1.4 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-189 |
| PyPI | tensorflow | 2.2.3 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-cpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-480 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-jhq9-wm9m-cf89 |
| PyPI | tensorflow-gpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-678 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-jhq9-wm9m-cf89 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | < 2.1.4>= 2.2.0, < 2.2.3>= 2.3.0, < 2.3.3>= 2.4.0, < 2.4.2 |
Weakness: CWE-617 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L