CVE-2024-28244
KaTeX's maxExpand bypassed by Unicode sub/superscripts
描述
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.
如何修補 CVE-2024-28244
要修補 CVE-2024-28244,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 0.16.10 或更新版本
CVE-2024-28244 正在被利用嗎?
低 — EPSS 為 2.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0
- >= 0.15.4, < 0.16.10
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |