Bug 1507803 (CVE-2017-9806)

Summary:	CVE-2017-9806 libreoffice: Out-of-bounds write in the WW8Fonts::WW8Fonts functionality
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anemec, caolanm, dtardon, erack, mstahl, sbergman
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libreoffice 3.4.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-10-31 09:19:54 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 08:19:12 UTC

An exploitable out of bound write vulnerability exists in the WW8Fonts::WW8Fonts functionality of Apache OpenOffice 4.1.3. A specially crafted doc file can cause an out of bound write potentially resulting in arbitrary code execution. An attacker can send/provide a malicious doc file to trigger this vulnerability.

External References:

https://www.talosintelligence.com/reports/TALOS-2017-0295
https://www.openoffice.org/security/cves/CVE-2017-9806.html
https://www.libreoffice.org/about-us/security/advisories/CVE-2017-9806

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

Created libreoffice tracking bugs for this issue:

Affects: fedora-all [bug 1507808]

Comment 2 David Tardon 2017-10-31 08:45:04 UTC

Is there any reproducer? Or even a hint whether libreoffice is vulnerable too? It seems to me that this was addressed by https://gerrit.libreoffice.org/gitweb?p=core.git;a=commitdiff_plain;h=bb494d6bd8c5868f34bd8f9444ed3eb401145f10 ~6 years ago...

Comment 3 David Tardon 2017-10-31 09:06:48 UTC

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

Comment 4 Huzaifa S. Sidhpurwala 2017-10-31 09:19:54 UTC

As per Libreoffice advisory mentioned in comment 0 , this issue was fixed in LO version 3.4.3, hence not version of Libreoffice shipped with Red Hat Enterprise Linux or Fedora is affected.