Bug 1444054 (CVE-2017-7856)

Summary:	CVE-2017-7856 libreoffice: Heap-buffer-overflow in SVMConverter::ImplConvertFromSVM1
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caolanm, dtardon, erack, mstahl, sbergman
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:	2017-04-21 13:14:57 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:	1444065
Bug Blocks:	1444063

Description Andrej Nemec 2017-04-20 13:36:12 UTC

LibreOffice has an out-of-bounds write caused by a heap-based buffer overflow in the SVMConverter::ImplConvertFromSVM1 function in vcl/source/gdi/svmconverter.cxx.

References:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=817

Upstream patch:

https://github.com/LibreOffice/core/commit/28e61b634353110445e334ccaa415d7fb6629d62

Comment 1 Andrej Nemec 2017-04-20 13:45:08 UTC

Created libreoffice tracking bugs for this issue:

Affects: fedora-all [bug 1444065]

Comment 2 Caolan McNamara 2017-04-21 11:03:55 UTC

This particular CVE refers specifically to https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=817 which is a bug introduced on the 19 Jan 2017 and fixed on 11 March 2017, so there was never a release with this bug in it.