Bug 1507806 (CVE-2017-12608)

Summary:	CVE-2017-12608 libreoffice: Out-of-bounds write in the WW8RStyle::ImportOldFormatStyles functionality
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anemec, caolanm, dtardon, erack, mstahl, sbergman
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libreoffice 5.0.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-10-31 09:27:11 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:	1507808
Bug Blocks:	1507560

Description Andrej Nemec 2017-10-31 08:21:19 UTC

An exploitable out-of-bounds write vulnerability exists in the WW8RStyle::ImportOldFormatStyles functionality of Apache OpenOffice 4.1.3. A specially crafted doc file can cause a out-of-bounds write resulting in arbitrary code execution. An attacker can send/provide malicious doc file to trigger this vulnerability.

External References:

https://www.talosintelligence.com/reports/TALOS-2017-0301
https://www.openoffice.org/security/cves/CVE-2017-12608.html
https://www.libreoffice.org/about-us/security/advisories/CVE-2017-12608

Comment 1 Andrej Nemec 2017-10-31 08:23:14 UTC

Created libreoffice tracking bugs for this issue:

Affects: fedora-all [bug 1507808]

Comment 2 David Tardon 2017-10-31 08:47:24 UTC

Most likely fixed by https://gerrit.libreoffice.org/gitweb?p=core.git;a=commitdiff_plain;h=42a709d1ef647aab9a1c9422b4e25ecaee857aba , which would mean no Fedora version is vulnerable. Is there any reproducer?

Comment 3 David Tardon 2017-10-31 09:07:05 UTC

Caolan confirms this is fixed by the mentioned commit, so no current Fedora is vulnerable.

Comment 4 Huzaifa S. Sidhpurwala 2017-10-31 09:24:49 UTC

As per LibreOffice upstream advisory mentioned in comment 0, this issue is fixed in version 5.0.2, hence only the version shipped with Red Hat Enterprise Linux 6 is vulnerable.