CVE-2021-41220— Use after free in `CollectiveReduceV2`
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-41220
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Use after free in `CollectiveReduceV2`
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Google TensorFlow 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google TensorFlow是美国谷歌（Google）公司的一套用于机器学习的端到端开源平台。 Google TensorFlow 存在资源管理错误漏洞，该漏洞源于 CollectiveReduceV2 的异步实现存在内存泄漏和释放后使用问题。 发生这种情况是由于异步计算以及仍然访问了来自 `std::move()` 的对象这一事实。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| tensorflow | tensorflow | >= 2.6.0, < 2.6.1 | - |
II. Public POCs for CVE-2021-41220
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-41220
请登录查看更多情报信息。
Same Patch Batch · tensorflow · 2021-11-05 · 34 CVEs total
| CVE-2021-41208 | 8.8 HIGH | Incomplete validation in boosted trees code |
| CVE-2021-41221 | 7.8 HIGH | Access to invalid memory during shape inference in `Cudnn*` ops |
| CVE-2021-41214 | 7.8 HIGH | Reference binding to `nullptr` in `tf.ragged.cross` |
| CVE-2021-41219 | 7.8 HIGH | Undefined behavior via `nullptr` reference binding in sparse matrix multiplication |
| CVE-2021-41201 | 7.8 HIGH | Unitialized access in `EinsumHelper::ParseEquation` |
| CVE-2021-41203 | 7.8 HIGH | Missing validation during checkpoint loading |
| CVE-2021-41228 | 7.5 HIGH | Code injection in `saved_model_cli` |
| CVE-2021-41224 | 7.1 HIGH | `SparseFillEmptyRows` heap OOB read |
| CVE-2021-41223 | 7.1 HIGH | Heap OOB read in `FusedBatchNorm` kernels |
| CVE-2021-41226 | 7.1 HIGH | Heap OOB read in `SparseBinCount` |
| CVE-2021-41212 | 7.1 HIGH | Heap OOB read in `tf.ragged.cross` |
| CVE-2021-41211 | 7.1 HIGH | Heap OOB read in shape inference for `QuantizeV2` |
| CVE-2021-41205 | 7.1 HIGH | Heap OOB read in all `tf.raw_ops.QuantizeAndDequantizeV*` ops |
| CVE-2021-41210 | 7.1 HIGH | Heap OOB read in `tf.raw_ops.SparseCountSparseOutput` |
| CVE-2021-41206 | 7.0 HIGH | Incomplete validation of shapes in multiple TF ops |
| CVE-2021-41227 | 6.6 MEDIUM | Arbitrary memory read in `ImmutableConst` |
| CVE-2021-41200 | 5.5 MEDIUM | Incomplete validation in `tf.summary.create_file_writer` |
| CVE-2021-41197 | 5.5 MEDIUM | Crashes due to overflow and `CHECK`-fail in ops with large tensor shapes |
| CVE-2021-41198 | 5.5 MEDIUM | Overflow/crash in `tf.tile` when tiling tensor is large |
| CVE-2021-41199 | 5.5 MEDIUM | Overflow/crash in `tf.image.resize` when size is large |
Showing top 20 of 34 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: tensorflow
Same vendor: tensorflow
- CVE-2026-2492
TensorFlow HDF5 Library Uncontrolled Search Path Element Loc - CVE-2023-33976
TensorFlow segfault in array_ops.upper_bound - CVE-2024-3660
Arbitrary code injection vulnerability in Keras framework < - CVE-2023-25661
Denial of Service in TensorFlow - CVE-2023-25660
TensorFlow vulnerable to seg fault in `tf.raw_ops.Print`
V. Comments for CVE-2021-41220
No comments yet