Bug 1002299 (CVE-2013-5648)

Summary:	CVE-2013-5648 libdigidoc: arbitrary file overwrite flaw
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	antti.andreimann, jrusnack, kalevlember, tuju
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libdigidoc 3.7.2	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-11-26 14:13:58 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:	1002302
Bug Blocks:

Description Vincent Danen 2013-08-28 20:34:33 UTC

It was reported [1],[2] that ID-software 3.7.2 (libdigidoc):

"Fixed one critical bug in the DDOC parsing routines. By persuading a victim to open a specially-crafted DDOC file, a remote attacker could exploit this vulnerability to overwrite arbitrary files on the system with the privileges of the victim."

The patch is in svn (not the repository from code.google.com/p/esteid, but from svn.eesti.ee) [3] (r98).  This patch was backported for Mageia [4] and looks applicable to what we ship in Fedora (although we have a much older version).  The patch from Mageia (or upstream) won't apply without changes, however, as it's adding a new error code.  Judging from the patch, it's just making sure that the file name doesn't include '/' or '\\' (so no paths in the filename).


[1] http://www.id.ee/?lang=en&id=34283#3_7_2
[2] https://bugs.mageia.org/show_bug.cgi?id=11100
[3] https://svn.eesti.ee/projektid/idkaart_public/
[4] http://svnweb.mageia.org/packages/updates/3/libdigidoc/current/SOURCES/libdigidoc-3.6.0.0-security-fix-DataFile-name-tag.patch?revision=472660&view=markup

Comment 1 Vincent Danen 2013-08-28 20:37:11 UTC

Created libdigidoc tracking bugs for this issue:

Affects: fedora-all [bug 1002302]

Comment 2 Vincent Danen 2013-08-29 04:55:55 UTC

This issue was assigned the name CVE-2013-5648:

http://www.openwall.com/lists/oss-security/2013/08/29/2

Comment 3 Fedora Update System 2014-11-18 12:20:59 UTC

libdigidoc-3.9.1.1191-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.