Bug 1986170 (CVE-2021-23413)

Summary:	CVE-2021-23413 jszip: crafting a new zip file with filenames set to object prototype values results in a returned object with a modified prototype instance
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aileenc, bdettelb, chazlett, dymurray, fjansen, gmalinko, ibolton, janstey, jmatthew, jmontleo, jochrist, jwon, slucidi, sseago
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	jszip 3.7.0	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in JSZip. Crafting a new zip file with filenames set to Object prototype values (ex. __proto__, toString, etc.) results in a returned object with a modified prototype instance. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1989406
Bug Blocks:	1986171

Description Guilherme de Almeida Suckevicz 2021-07-26 20:02:36 UTC

This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.

Reference:
https://snyk.io/vuln/SNYK-JS-JSZIP-1251497

Upstream patch:
https://github.com/Stuk/jszip/pull/766
https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36