Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

For bugs related to Red Hat Enterprise Linux 5 product line. The current stable release is 5.10. For Red Hat Enterprise Linux 6 and above, please visit Red Hat JIRA https://issues.redhat.com/secure/CreateIssue!default.jspa?pid=12332745 to report new issues.

Bug 229262

Summary:	CVE-2007-0999 Ekiga format string flaw (CVE-2007-1006)
Product:	Red Hat Enterprise Linux 5	Reporter:	Josh Bressers <bressers>
Component:	ekiga	Assignee:	Daniel Veillard <veillard>
Status:	CLOSED ERRATA	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	medium
Version:	5.0	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=critical,source=secunia,reported=20070219,public=20070213
Fixed In Version:	RHSA-2007-0087	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-03-14 14:59:36 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:

Description Josh Bressers 2007-02-19 20:13:04 UTC

+++ This bug was initially created as a clone of Bug #229259 +++

A format string flaw was found in the way Ekiga processes certain messages form
remote clients.  This flaw could allow a remote attacker to execute arbitrary
code as the user running Ekiga.

This flaw also affects FC5

-- Additional comment from bressers on 2007-02-19 15:01 EST --
Created an attachment (id=148361)
Upstream patch extracted from SVN

Comment 4 Søren Sandmann Pedersen 2007-03-01 00:20:33 UTC

They are building now, task  

   http://brewweb.devel.redhat.com/brew/taskinfo?taskID=637346

I wasn't sure whether these would go into -qu-candiate or -candiate, so I took a
guess.

Comment 6 Mark J. Cox 2007-03-05 16:34:00 UTC

failed qa as there is a double vsnprintf which strips the first %s.  Looks like
a bug.  Possible fix: 

--- main.cpp.orig       2007-03-05 11:31:49.000000000 -0500
+++ main.cpp    2007-03-05 11:33:02.000000000 -0500
@@ -4233,8 +4233,6 @@
 {
   GmWindow *mw = NULL;
 
-  char buffer [1025];
-
   g_return_if_fail (main_window != NULL);
 
   mw = gm_mw_get_mw (main_window);
@@ -4242,8 +4240,7 @@
   va_list args;
 
   va_start (args, msg);
-  vsnprintf (buffer, 1024, msg, args);
-  gm_statusbar_flash_message (GM_STATUSBAR (mw->statusbar), buffer);
+  gm_statusbar_flash_message (GM_STATUSBAR (mw->statusbar), msg, args);
   va_end (args);
 }

Comment 7 Søren Sandmann Pedersen 2007-03-05 20:00:27 UTC

New packages that will hopefully fix - see ekiga-2_0_2-7_0_1

Comment 8 Mark J. Cox 2007-03-07 09:35:46 UTC

Failed qa due to a double vsnprintf which opened up the format string flaws; so
CVE-2007-0999 for the new format string flaws.

CVE-2007-0999
impact=critical,source=redhat,reported=20070306,public=20070306

Comment 12 Red Hat Bugzilla 2007-03-14 14:59:36 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0087.html