CVE-2021-41213
Deadlock in mutually recursive `tf.function` objects
描述
TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutually recursive. This occurs due to using a non-reentrant `Lock` Python object. Loading any model which contains mutually recursive functions is vulnerable. An attacker can cause denial of service by causing users to load such models and calling a recursive `tf.function`, although this is not a frequent scenario. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
如何修補 CVE-2021-41213
要修補 CVE-2021-41213,請將受影響套件升級到下列已修補版本。
- —升級至 2.6.1 或更新版本
- —升級至 2.6.1 或更新版本
- —升級至 2.6.1 或更新版本
CVE-2021-41213 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- >= 2.6.0, < 2.6.1
- >= 2.6.0, < 2.6.1
- >= 2.6.0, < 2.6.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |