CVE-2024-28244— KaTeX 安全漏洞

KaTeX's maxExpand bypassed by Unicode sub/superscripts

KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\def` or `\newcommand` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. KaTeX supports an option named maxExpand which aims to prevent infinitely recursive macros from consuming all available memory and/or triggering a stack overflow error. Unfortunately, support for "Unicode (sub|super)script characters" allows an attacker to bypass this limit. Each sub/superscript group instantiated a separate Parser with its own limit on macro executions, without inheriting the current count of macro executions from its parent. This has been corrected in KaTeX v0.16.10.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

未经控制的递归

KaTeX 安全漏洞

KaTeX是一个快速、易于使用的 JavaScript 库，用于在网络上进行 TeX 数学渲染。 KaTeX v0.16.10 版本之前存在安全漏洞，该漏洞源于呈现不受信任的数学表达式的 KaTeX 用户可能会遇到使用 def 或 ewcommand 的恶意输入，可能导致近乎无限的循环。

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