TensorFlow におけるゼロ除算に関する脆弱性
| Title |
TensorFlow におけるゼロ除算に関する脆弱性
|
| Summary |
TensorFlow には、ゼロ除算に関する脆弱性が存在します。
|
| Possible impacts |
サービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution |
ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date |
April 22, 2021, midnight |
| Registration Date |
Jan. 14, 2022, 2:29 p.m. |
| Last Update |
Jan. 14, 2022, 2:29 p.m. |
|
CVSS3.0 : 警告
|
| Score |
5.5
|
| Vector |
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
|
CVSS2.0 : 注意
|
| Score |
2.1
|
| Vector |
AV:L/AC:L/Au:N/C:N/I:N/A:P |
Affected System
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2022年01月14日]
掲載 |
Jan. 14, 2022, 2:29 p.m. |
NVD Vulnerability Information
CVE-2021-29538
| Summary |
TensorFlow is an end-to-end open source platform for machine learning. An attacker can cause a division by zero to occur in `Conv2DBackpropFilter`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/1b0296c3b8dd9bd948f924aa8cd62f87dbb7c3da/tensorflow/core/kernels/conv_grad_filter_ops.cc#L513-L522) computes a divisor based on user provided data (i.e., the shape of the tensors given as arguments). If all shapes are empty then `work_unit_size` is 0. Since there is no check for this case before division, this results in a runtime exception, with potential to be abused for a denial of service. 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.
|
| Publication Date |
May 15, 2021, 5:15 a.m. |
| Registration Date |
May 15, 2021, 10 a.m. |
| Last Update |
Nov. 21, 2024, 3:01 p.m. |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* |
2.4.0 |
|
|
2.4.2 |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* |
2.3.0 |
|
|
2.3.3 |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* |
2.2.0 |
|
|
2.2.3 |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* |
|
|
|
2.1.4 |
Related information, measures and tools
Common Vulnerabilities List