CVE-2022-21733

描述

Tensorflow is an Open Source Machine Learning Framework. The implementation of `StringNGrams` can be used to trigger a denial of service attack by causing an out of memory condition after an integer overflow. We are missing a validation on `pad_witdh` and that result in computing a negative value for `ngram_width` which is later used to allocate parts of the output. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.

如何修補 CVE-2022-21733

要修補 CVE-2022-21733,請將受影響套件升級到下列已修補版本。

• —升級至 2.5.3 或更新版本
• —升級至 2.5.3 或更新版本
• —升級至 2.5.3 或更新版本
• —升級至 2.5.3 或更新版本
• —升級至 f68fdab93fb7f4ddb4eb438c8fe052753c9413e8 或更新版本
• —升級至 2.5.3 或更新版本
• —升級至 f68fdab93fb7f4ddb4eb438c8fe052753c9413e8 或更新版本

CVE-2022-21733 正在被利用嗎?

低 — EPSS 為 0.8%,目前沒有觀察到大規模利用活動。

受影響套件(7)

• from 0, < 2.5.3, >= 2.6.0, < 2.6.3, >= 2.7.0, < 2.7.1
• from 0, < 2.5.3
• from 0, < 2.5.3, >= 2.6.0, < 2.6.3, >= 2.7.0, < 2.7.1
• from 0, < 2.5.3
• from 0, < f68fdab93fb7f4ddb4eb438c8fe052753c9413e8 | from 0, < 2.5.3, >= 2.6.0, < 2.6.3
• from 0, < 2.5.3
• from 0, < f68fdab93fb7f4ddb4eb438c8fe052753c9413e8 | from 0, < 2.5.3, >= 2.6.0, < 2.6.3

CVSS 分數

參考連結(9)

• ADVISORYgithub.com/advisories/GHSA-98j8-c9q4-r38g
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-21733
• PATCHpypi.org/project/tensorflow
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2022-57.yaml