CVE-2019-5477
rexical - security update
9.8
CRITICAL
CVSS 3.1
EPSS 5.9%
描述
A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.
如何修補 CVE-2019-5477
要修補 CVE-2019-5477,請將受影響套件升級到下列已修補版本。
- —升級至 1.0.7-1 或更新版本
- —升級至 1.0.5-2+deb10u1 或更新版本
- —升級至 1.10.4+dfsg1-1 或更新版本
- —升級至 1.6.3.1+ds-1+deb8u1 或更新版本
- —升級至 1.10.0+dfsg1-2+deb10u1 或更新版本
- —升級至 1.10.4 或更新版本
- —升級至 1.0.7 或更新版本
CVE-2019-5477 正在被利用嗎?
中等 — EPSS 為 5.9%,可持續追蹤但非最高優先。
受影響套件(7)
- from 0, < 1.0.7-1
- from 0, < 1.0.5-2+deb10u1
- from 0, < 1.10.4+dfsg1-1
- from 0, < 1.6.3.1+ds-1+deb8u1
- from 0, < 1.10.0+dfsg1-2+deb10u1
- from 0, < 1.10.4
- from 0, < 1.0.7
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |