Bug 1496652 (CVE-2017-7814)

Summary:	CVE-2017-7814 Mozilla: Blob and data URLs bypass phishing and malware protection warnings (MFSA 2017-22)
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	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:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-10-11 23:51:48 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:	1494903

Description Doran Moppert 2017-09-28 04:27:09 UTC

File downloads encoded with blob: and data: URL elements bypassed normal file download checks though the Phishing and Malware Protection feature and its block lists of suspicious sites and files. This would allow malicious sites to lure users into downloading executables that would otherwise be detected as suspicious.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/#CVE-2017-7814

Comment 2 Doran Moppert 2017-09-28 05:03:52 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: François Marier

Comment 3 Tomas Hoger 2017-09-28 18:49:08 UTC

Public now via upstream advisories:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/

Comment 4 errata-xmlrpc 2017-09-28 23:48:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2831 https://access.redhat.com/errata/RHSA-2017:2831

Comment 5 errata-xmlrpc 2017-10-11 23:40:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2885 https://access.redhat.com/errata/RHSA-2017:2885