Bug 1479188 (CVE-2017-7753)

Summary:	CVE-2017-7753 Mozilla: Out-of-bounds read with cached style data and pseudo-elements (MFSA 2017-19)
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
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:	2017-08-24 07:31:38 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:	1477026

Description Doran Moppert 2017-08-08 06:35:15 UTC

An out-of-bounds read when applying style rules to pseudo-elements like ::first-line using cached style data.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/#CVE-2017-7753


Acknowledgements:

Name: the Mozilla project
Upstream: SkyLined

Comment 1 errata-xmlrpc 2017-08-10 23:20:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2017:2456 https://access.redhat.com/errata/RHSA-2017:2456

Comment 2 errata-xmlrpc 2017-08-24 06:45:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2534 https://access.redhat.com/errata/RHSA-2017:2534