Bug 2221272 (CVE-2021-33796)

Summary:	CVE-2021-33796 MuJS: Use-after-free in regexp source property access
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	MuJS 1.1.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-07-07 21:56:02 UTC	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:	2221274, 2221273
Bug Blocks:

Description Pedro Sampaio 2023-07-07 17:48:22 UTC

In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.

References:

https://github.com/ccxvii/mujs/commit/7ef066a3bb95bf83e7c5be50d859e62e58fe8515

Comment 1 Pedro Sampaio 2023-07-07 17:48:40 UTC

Created mujs tracking bugs for this issue:

Affects: epel-all [bug 2221274]
Affects: fedora-all [bug 2221273]

Comment 2 Product Security DevOps Team 2023-07-07 21:56:01 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.