Bug 229262 - CVE-2007-0999 Ekiga format string flaw (CVE-2007-1006)
Summary: CVE-2007-0999 Ekiga format string flaw (CVE-2007-1006)
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: ekiga
Version: 5.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Daniel Veillard
QA Contact:
Whiteboard: impact=critical,source=secunia,report...
Depends On:
TreeView+ depends on / blocked
Reported: 2007-02-19 20:13 UTC by Josh Bressers
Modified: 2007-11-30 22:07 UTC (History)
0 users

Fixed In Version: RHSA-2007-0087
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-03-14 14:59:36 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2007:0087 0 normal SHIPPED_LIVE Critical: ekiga security update 2007-03-14 14:59:16 UTC

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@redhat.com 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  


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

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.


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.


Note You need to log in before you can comment on or make changes to this bug.