oss-security - Re: CVE-2010 Request -- blender: Insecure temporary file use by creating file string in undo save quit Blender kernel routine (re-occurrence of CVE-2008-1103)

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Date: Thu, 06 Sep 2012 11:56:13 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Jan Lieskovsky <jlieskov@...hat.com>, Paul Wise <pabs@...ian.org>,
        Cyril Brulebois <kibi@...ian.org>
Subject: Re: CVE-2010 Request -- blender: Insecure temporary
 file use by creating file string in undo save quit Blender kernel routine
 (re-occurrence of CVE-2008-1103)

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On 09/06/2012 10:43 AM, Jan Lieskovsky wrote:
> Hello Kurt, Steve, vendors,
> 
> an insecure temporary file use flaw was found in the way 'undo save
> quit' routine of Blender kernel of Blender, a 3D modeling,
> animation, rendering and post-production software solution,
> performed management of 'quit.blend' temporary file, used for
> session recovery purposes. A local attacker could use this flaw to
> conduct symbolic link attacks, leading to ability to overwrite
> arbitrary system file, accessible with the privileges of the user
> running the blender executable.
> 
> Upstream ticket: [1]
> https://projects.blender.org/tracker/index.php?func=detail&aid=22509&group_id=9&atid=498
>
>  References: [2]
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584621
> 
> This seems to be / is a re-occurrence of the CVE-2008-1103 flaw: 
> [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1103 [4]
> https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2008-1103 [5]
> https://bugs.launchpad.net/ubuntu/+source/blender/+bug/6671 [6]
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=298167
> 
> Could you allocate a CVE-2010- identifier for this?
> 
> Thank you && Regards, Jan. -- Jan iankko Lieskovsky / Red Hat
> Security Response Team
> 
> P.S.: Please note upstream seems to dispute the necessity of the
> fix for this (Followup #1 after Paul's report).

Please use CVE-2012-4410 for this issue.


- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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