Bug 1597847 (CVE-2018-12932)

Summary:	CVE-2018-12932 wine: heap-based buffer overflow in PlayEnhMetaFileRecord in enhmetafile.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	andreas.bierfert, besser82, mike
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:	2019-06-10 10:31:45 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:	1597848
Bug Blocks:

Description Laura Pardo 2018-07-03 17:15:33 UTC

A flaw was found in PlayEnhMetaFileRecord in enhmetafile.c in Wine 3.7 allows attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact by triggering a large pAlphaBlend->cbBitsSrc value.


References:
https://bugs.launchpad.net/ubuntu/+source/wine/+bug/1764719 	
https://bugs.winehq.org/attachment.cgi?id=61284 	
https://bugs.winehq.org/show_bug.cgi?id=45105 	

Upstream Patch:
https://source.winehq.org/git/wine.git/commit/8d2676fd14f130f9e8f06744743423168bf8d18d 	
https://source.winehq.org/git/wine.git/commit/b6da3547d8990c3c3affc3a5865aefd2a0946949

Comment 1 Laura Pardo 2018-07-03 17:15:54 UTC

Created wine tracking bugs for this issue:

Affects: epel-all [bug 1597848]

Comment 2 Product Security DevOps Team 2019-06-10 10:31:45 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.