Bug 2271609 (CVE-2024-28243)

Summary: CVE-2024-28243 katex: malicious input using `\edef` that causes a near-infinite loop
Product: [Other] Security Response Reporter: Rohit Keshri <rkeshri>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Bug Depends On: 2271610, 2271611    
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Description Rohit Keshri 2024-03-26 14:06:42 UTC 
KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\edef` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. This can be used as an availability attack, where e.g. a client rendering another user's KaTeX input will be unable to use the site due to memory overflow, tying up the main thread, or stack overflow. Upgrade to KaTeX v0.16.10 to remove this vulnerability.

https://github.com/KaTeX/KaTeX/commit/e88b4c357f978b1bca8edfe3297f0aa309bcbe34
https://github.com/KaTeX/KaTeX/security/advisories/GHSA-64fm-8hw2-v72w
Comment 1 Rohit Keshri 2024-03-26 14:07:05 UTC 
Created h3 tracking bugs for this issue:

Affects: fedora-all [bug 2271610]


Created marker tracking bugs for this issue:

Affects: fedora-all [bug 2271611]