Bug 1224385

Summary:	VUL-0: CVE-2024-4067: xpra-html5: the npm package `micromatch` is vulnerable to Regular Expression Denial of Service (ReDoS)
Product:	[openSUSE] openSUSE Distribution	Reporter:	SMASH SMASH <smash_bz>
Component:	Security	Assignee:	Security Team bot <security-team>
Status:	RESOLVED INVALID	QA Contact:	Security Team bot <security-team>
Severity:	Major
Priority:	P3 - Medium	CC:	gabriele.sonnu
Version:	Leap 15.6
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/405384/
Whiteboard:	CVSSv3.1:SUSE:CVE-2024-4067:7.5:(AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:
Bug Blocks:	1224255

Description SMASH SMASH 2024-05-16 13:22:29 UTC

The NPM package `micromatch` is vulnerable to Regular Expression Denial of Service (ReDoS). The vulnerability occurs in `micromatch.braces()` in `index.js` because the pattern `.*` will greedily match anything. By passing a malicious payload, the pattern matching will keep backtracking to the input while it doesn't find the closing bracket. As the input size increases, the consumption time will also increase until it causes the application to hang or slow down. There was a merged fix but further testing shows the issue persists. This issue should be mitigated by using a safe pattern that won't start backtracking the regular expression due to greedy matching.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-4067
https://www.cve.org/CVERecord?id=CVE-2024-4067
https://devhub.checkmarx.com/cve-details/CVE-2024-4067/
https://github.com/micromatch/micromatch/blob/2c56a8604b68c1099e7bc0f807ce0865a339747a/index.js#L448
https://github.com/micromatch/micromatch/issues/243
https://github.com/micromatch/micromatch/pull/247

Comment 1 Gabriele Sonnu 2024-05-16 13:22:44 UTC

Vulnerable versions of the micromatch package are embedded in:

- openSUSE:Factory/xpra-html5  micromatch (4.0.5)

Upstream issue:

https://github.com/micromatch/micromatch/issues/243

Comment 2 Scott Bradnick 2024-05-16 13:53:18 UTC

(In reply to Gabriele Sonnu from comment #1)
> Vulnerable versions of the micromatch package are embedded in:
> 
> - openSUSE:Factory/xpra-html5  micromatch (4.0.5)
> 
> Upstream issue:
> 
> https://github.com/micromatch/micromatch/issues/243

Talking with xpra-html5 upstream maintainer about this one too in: https://github.com/Xpra-org/xpra-html5/issues/306

Comment 3 Gabriele Sonnu 2024-05-17 08:14:26 UTC

Hi Scott, I saw the maintainer answered that they're only used as commit hook and the like and they're not really shipped. I'd say both issues can be closed.