漏洞信息
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Vulnerability Title
shell-quote parse() is quadratic in token count, enabling denial of service
Vulnerability Description
shell-quote prior to 1.8.5 finalizes parsed tokens in parse() using Array.prototype.concat as a reduce accumulator, which reallocates and copies the entire growing array on every iteration. As a result parse() runs in O(n^2) time relative to the number of input tokens. An attacker who can supply an attacker-controlled string to any code path that calls parse() (no shell metacharacters are required; plain space-separated words suffice) can block the single-threaded Node.js event loop for an extended period with a small input, resulting in a denial of service. There is no code execution or data disclosure; impact is to availability only. Fixed in 1.8.5.
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
Jordan Harband shell-quote 资源管理错误漏洞
Vulnerability Description
Jordan Harband shell-quote是Jordan Harband个人开发者的一个命令行参数解析和引用处理的库。 Jordan Harband shell-quote 1.8.5之前版本存在资源管理错误漏洞,该漏洞源于在parse()中使用Array.prototype.concat作为reduce累加器完成解析令牌,导致每次迭代重新分配和复制整个增长的数组,使parse()运行时间复杂度为O(n^2),攻击者通过提供攻击者控制的字符串调用parse(),可阻塞单线程Node.js事件循环
CVSS Information
N/A
Vulnerability Type
N/A