Bug 1788725 (CVE-2019-17021)

Summary:	CVE-2019-17021 Mozilla: Heap address disclosure in parent process during content process initialization on Windows
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 68.4, thunderbird 68.4.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-01-07 22:42:10 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:
Bug Blocks:	1787590

Description Doran Moppert 2020-01-07 22:37:24 UTC

During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. 

*Note: this issue only occurs on Windows. Other operating systems are unaffected.*



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/#CVE-2019-17021

Comment 1 Doran Moppert 2020-01-07 22:37:27 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Thomas Imbert