CVE-2021-29514 (CNNVD-202105-956)
中文标题:
Google TensorFlow 缓冲区错误漏洞
英文标题:
Heap out of bounds write in `RaggedBinCount`
漏洞描述
中文描述:
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。 TensorFlow 2.4.2,2.3.3存在缓冲区错误漏洞，该漏洞源于如果split参数没有指定一个有效的SparseTensor 攻击者可利用该漏洞就可以触发堆缓冲区溢出。
英文描述:
TensorFlow is an end-to-end open source platform for machine learning. If the `splits` argument of `RaggedBincount` does not specify a valid `SparseTensor`(https://www.tensorflow.org/api_docs/python/tf/sparse/SparseTensor), then an attacker can trigger a heap buffer overflow. This will cause a read from outside the bounds of the `splits` tensor buffer in the implementation of the `RaggedBincount` op(https://github.com/tensorflow/tensorflow/blob/8b677d79167799f71c42fd3fa074476e0295413a/tensorflow/core/kernels/bincount_op.cc#L430-L446). Before the `for` loop, `batch_idx` is set to 0. The attacker sets `splits(0)` to be 7, hence the `while` loop does not execute and `batch_idx` remains 0. This then results in writing to `out(-1, bin)`, which is before the heap allocated buffer for the output tensor. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2 and TensorFlow 2.3.3, as these are also affected.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| tensorflow | tensorflow | < 2.3.3 | - | - |
cpe:2.3:a:tensorflow:tensorflow:<_2.3.3:*:*:*:*:*:*:*
|
| tensorflow | tensorflow | >= 2.4.0, < 2.4.2 | - | - |
cpe:2.3:a:tensorflow:tensorflow:>=_2.4.0,_<_2.4.2:*:*:*:*:*:*:*
|
| tensorflow | * | - | - |
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
3.1 (cna)
LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2021-29514 |
2025-11-11 15:20:55 | 2025-11-11 07:36:48 |
| NVD | nvd_CVE-2021-29514 |
2025-11-11 14:57:37 | 2025-11-11 07:45:07 |
| CNNVD | cnnvd_CNNVD-202105-956 |
2025-11-11 15:10:38 | 2025-11-11 07:56:45 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 缓冲区错误
- cnnvd_id: 未提取 -> CNNVD-202105-956
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 2 -> 3
- data_sources: ['cve'] -> ['cve', 'nvd']