Vulnerability Information
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Vulnerability Title
kurwov vulnerable to Denial of Service due to improper data sanitization
Vulnerability Description
kurwov is a fast, dependency-free library for creating Markov Chains. An unsafe sanitization of dataset contents on the `MarkovData#getNext` method used in `Markov#generate` and `Markov#choose` allows a maliciously crafted string on the dataset to throw and stop the function from running properly. If a string contains a forbidden substring (i.e. `__proto__`) followed by a space character, the code will access a special property in `MarkovData#finalData` by removing the last character of the string, bypassing the dataset sanitization (as it is supposed to be already sanitized before this function is called). Any dataset can be contaminated with the substring making it unable to properly generate anything in some cases. This issue has been addressed in version 3.2.5 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
可信数据的反序列化
Vulnerability Title
kurwov 安全漏洞
Vulnerability Description
kurwov是kubus个人开发者的一个用于创建马尔可夫链的快速、无依赖性库。 kurwov 3.1.0至3.2.5之前版本存在安全漏洞，该漏洞源于存在拒绝服务漏洞。
CVSS Information
N/A
Vulnerability Type
N/A