Re: [Full-disclosure] [Fwd: Re: [ GLSA 200701-18 ] xine-ui: Format string vulnerabilities]

Hello,

Ok, apparently, the primary source of information is the Cert, since :
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-0254

hrm, I still think the vunerability has nothing to do with
errors_create_window thoo.

Cheers,

endrazine-

endrazine a écrit :
Hi list,

I couldn't get a confirmation from the author of this post.
GLSAs are very often the best source of detailed information
on a given vulnerability imho ; at least, They provide indications
on the type of vulnerability and the afected function name.

Too bad they're inacurate :/

Regards,

endrazine-



------------------------------------------------------------------------

Sujet:
Re: [Full-disclosure] [ GLSA 200701-18 ] xine-ui: Format string
vulnerabilities
Expéditeur:
endrazine <endrazine@xxxxxxxxx>
Date:
Wed, 24 Jan 2007 08:08:51 +0100
Destinataire:
Raphael Marichez <falco@xxxxxxxxxx>

Destinataire:
Raphael Marichez <falco@xxxxxxxxxx>


Hello Raphael,

I have an issue with this Glsa (wich is a really usefull service
between, thx) :

I think the affected syscall is xitk_window_dialog_error rather at
line 128,231,357 in /src/xitk/errors.c
the "bad" thing is that errors_create_window exists but wasn't
modified at all...

see below...




$ diff ./xine-ui-0.99.4/src/xitk/errors.c
../../xine-ui-0.99.5_pre20060716/work/xine-ui-0.99.5_pre20060716/src/xitk/errors.c

20c20
< * $Id: errors.c,v 1.32 2005/02/07 18:16:28 miguelfreitas Exp $
---
* $Id: errors.c,v 1.34 2006/07/15 08:46:50 dgp85 Exp $
71c71
< message);
---
"%s", message);
113c113
< if(gGui->stdctl_enable) {
---
if(gGui->stdctl_enable || !gGui->display) {
128c128
< xw = xitk_window_dialog_error(gGui->imlib_data, buf2);
---
xw = xitk_window_dialog_error(gGui->imlib_data, "%s", buf2);
231c231
< xw = xitk_window_dialog_info(gGui->imlib_data, buf2);
---
xw = xitk_window_dialog_info(gGui->imlib_data, "%s", buf2);
357c357
< message);
---
"%s", message);




Regards,


endrazine-





Raphael Marichez a écrit :
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Gentoo Linux Security Advisory GLSA 200701-18
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http://security.gentoo.org/
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Severity: Normal
Title: xine-ui: Format string vulnerabilities
Date: January 23, 2007
Bugs: #161558
ID: 200701-18

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

xine-ui improperly handles format strings, possibly allowing for the
execution of arbitrary code.

Background
==========

xine-ui is a skin-based user interface for xine. xine is a free
multimedia player. It plays CDs, DVDs, and VCDs, and can also decode
other common multimedia formats.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 xine-ui < 0.99.5_pre20060716 >= 0.99.5_pre20060716

Description
===========

Due to the improper handling and use of format strings, the
errors_create_window() function in errors.c does not safely write data
to memory.

Impact
======

An attacker could entice a user to open a specially crafted media file
with xine-ui, and possibly execute arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xine-ui users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=media-video/xine-ui-0.99.5_pre20060716"

References
==========

[ 1 ] CVE-2007-0254
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0254

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200701-18.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

------------------------------------------------------------------------

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------------------------------------------------------------------------

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

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