CVE-2020-1747

描述

A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.

如何修補 CVE-2020-1747

要修補 CVE-2020-1747,請將受影響套件升級到下列已修補版本。

• —升級至 5.3.1-r0 或更新版本
• —升級至 5.3-2 或更新版本
• —升級至 5.3.1 或更新版本
• —升級至 5.3.1 或更新版本

CVE-2020-1747 正在被利用嗎?

中等 — EPSS 為 5.3%,可持續追蹤但非最高優先。

受影響套件(4)

• from 0, < 5.3.1-r0
• from 0, < 5.3-2
• >= 5.1b7, < 5.3.1
• >= 5.1, < 5.3.1

CVSS 分數

參考連結(24)

• ADVISORYgithub.com/advisories/GHSA-6757-jp84-gxfx
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-1747
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-1747
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2020-1747
• PATCH