Bug 1540431 (CVE-2018-5124)

Summary:	CVE-2018-5124 firefox: Unsanitized output in browser UI can lead to arbitrary code execution
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	alexl, gecko-bugs-nobody, jhorak, john.j5live, pjasicek, rhughes, rstrode, sandmann, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 58.0.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:38:55 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:	1540308
Bug Blocks:

Description Sam Fowler 2018-01-31 04:08:17 UTC

Mozilla Firefox before version 58.0.1 does not properly sanitize HTML fragments for chrome-privileged documents. An attacker could exploit this to execute arbitrary code.

This issue did not affect Firefox for Android or Firefox 52 ESR.

Upstream Advisory:
https://www.mozilla.org/en-US/security/advisories/mfsa2018-05/

Upstream Issue:
https://bugzilla.mozilla.org/show_bug.cgi?id=1432966