CVE-2020-15207

描述

In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds. If the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption. The issue is patched in commit 2d88f470dea2671b430884260f3626b1fe99830a, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

如何修補 CVE-2020-15207

要修補 CVE-2020-15207,請將受影響套件升級到下列已修補版本。

• —升級至 1.15.4 或更新版本
• —升級至 1.15.4 或更新版本
• —升級至 2d88f470dea2671b430884260f3626b1fe99830a 或更新版本
• —升級至 1.15.4 或更新版本
• —升級至 2d88f470dea2671b430884260f3626b1fe99830a 或更新版本
• —升級至 1.15.4 或更新版本
• —升級至 2d88f470dea2671b430884260f3626b1fe99830a 或更新版本

CVE-2020-15207 正在被利用嗎?

低 — EPSS 為 1.2%,目前沒有觀察到大規模利用活動。

受影響套件(7)

• from 0, < 1.15.4, >= 2.0.0, < 2.0.3, >= 2.1.0, < 2.1.2, >= 2.2.0, < 2.2.1, >= 2.3.0, < 2.3.1
• from 0, < 1.15.4
• from 0, < 2d88f470dea2671b430884260f3626b1fe99830a | from 0, < 1.15.4, >= 2.0.0, < 2.0.3, >= 2.1.0, < 2.1.2, >= 2.2.0, < 2.2.1, >= 2.3.0, < 2.3.1
• from 0, < 1.15.4
• from 0, < 2d88f470dea2671b430884260f3626b1fe99830a | from 0, < 1.15.4, >= 2.0.0, < 2.0.3, >= 2.1.0, < 2.1.2, >= 2.2.0, < 2.2.1, >= 2.3.0, < 2.3.1
• from 0, < 1.15.4
• from 0, < 2d88f470dea2671b430884260f3626b1fe99830a | from 0, < 1.15.4, >= 2.0.0, < 2.0.3, >= 2.1.0, < 2.1.2, >= 2.2.0, < 2.2.1, >= 2.3.0, < 2.3.1

CVSS 分數

參考連結(9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-15207
• PATCHgithub.com/tensorflow/tensorflow
• WEBlists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-287.yaml