漏洞信息
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Vulnerability Title
league/commonmark: Quadratic-time denial of service when parsing crafted Markdown
Vulnerability Description
league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 0.6.0 until 2.9.0, specially crafted Markdown lines can cause the parser to have quadratic time complexity when converting, because several parsing paths repeatedly rescan growing portions of a line to translate between character positions and byte positions, and the Autolink extension can also copy and validate the remaining line at every URL-like prefix, allowing an attacker who can submit Markdown for conversion to consume disproportionate CPU time with a comparatively small request. This issue is fixed in 2.9.0.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
算法复杂性
Vulnerability Title
The League of Extraordinary Packages league/commonmark 资源管理错误漏洞
Vulnerability Description
The League of Extraordinary Packages league/commonmark是The League of Extraordinary Packages组织开源的一款Markdown解析组件。 The League of Extraordinary Packages league/commonmark 0.6.0版本至2.9.0之前版本存在资源管理错误漏洞,该漏洞源于特制Markdown行导致解析器在转换时存在二次时间复杂性,多个解析路径反复重新扫描行的增长部分,且Autol
CVSS Information
N/A
Vulnerability Type
N/A