Bug 1227690

Summary:	VUL-0: CVE-2024-38526: ghc-pandoc: Polyfill Supply Chain Attack
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Gianluca Gabrielli <gianluca.gabrielli>
Component:	Incidents	Assignee:	Peter Simons <peter.simons>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	meissner, security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/412153/
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:
Bug Blocks:	1227687

Description Gianluca Gabrielli 2024-07-12 08:14:33 UTC

+++ This bug was initially created as a clone of Bug #1227687 +++

The polyfill.js is a popular open source library to support older browsers. 100K+ sites embed it using the cdn.polyfill.io domain. Notable users are JSTOR, Intuit and World Economic Forum. However, in February this year, a Chinese company bought the domain and the Github account. Since then, this domain was caught injecting malware on mobile devices via any site that embeds cdn.polyfill.io.

References:
https://sansec.io/research/polyfill-supply-chain-attack
https://nvd.nist.gov/vuln/detail/CVE-2024-38526

Comment 1 Gianluca Gabrielli 2024-07-12 08:23:49 UTC

The following package loads js from polyfill.io.

 - SUSE:SLE-15-SP5:Update/ghc-pandoc

Upstream already address it in v3.1.12.3 [0] but I see that more recently they even droped it [1]. If you believe it's OK to drop, then you can backport the latter commit too.

openSUSE:Factory/ghc-pandoc is safe as it's v3.2.

[0] https://github.com/jgm/pandoc/commit/5877ec546df29115163b36de32837f5e08506092
[1] https://github.com/jgm/pandoc/commit/59cc5c37251a9a180717474612d6efbd4ad90402