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Re: Potential security issues fixed in PHP 5.3.9
From: Kurt Seifried <kseifried () redhat com>
Date: Fri, 20 Jan 2012 16:49:38 -0700

On 01/20/2012 05:22 AM, Pierre Joye wrote:
hi!

On Fri, Jan 20, 2012 at 6:00 AM, Kurt Seifried <kseifried () redhat com> wrote:
Hi, in addition to the xslt arbitrary file creation) there are some more potential security vulnerabilities that 
appear to have been fixed in 5.3.9. Can you confirm if these are not security issues? Also will you need CVE 
assignments for the ones that are (I can help with that).

Sending to security () php net again and cc'ing oss-sec in case anyone on the list has ideas/comments.

From the ChangeLog:

===========================================================
Fixed bug #60150 (Integer overflow during the parsing of invalid exif
header). (Stas, flolechaud at gmail dot com) - security bug
There is an integer overflow in ext/exif/exif.c that can be used in order to
cause a denial of service or read arbitrary memory.
Which one?
My bad, I read the NEWS and then the ChangeLog and promptly forgot that
CVE-2011-4566 had been assigned. I emailed with Pierre Joye, here is a
summary:

==========
Fixed bug #55776 (PDORow to session bug). (Johannes)
Is a Apache crash. It gives a CGI/FastCGI Send/Don't Send window.
http://img171.imageshack.us/img171/3953/57126366.jpg [Open URL]
After few minutes is crashing apache server:
http://img840.imageshack.us/img840/2981/21231006.jpg [Open URL]
Please use CVE-2012-0788 for this issue.

==========
Fixed bug #60279 (Fixed NULL pointer dereference in
stream_socket_enable_crypto, case when ssl_handle of session_stream is
not initia\
lized.) (shm) - (needs bad code)

==========
Fixed bug #55622 (memory corruption in parse_ini_string). (Pierre) -
need access to ini style config, but can cause memory corruption\
 (code exec?)
These need to be researched a bit more (do they have a security impact?).
==========
Fixed bug #53502 (strtotime with timezone memory leak). (Derick) - minor
dos?
I don't think we can or should consider memory leaks as DoS :)

Unfortunately memory leaks (where memory is used, then released but not
released properly) can result in denial of service attacks.

Please use CVE-2012-0789 for this issue.

-- 

-- Kurt Seifried / Red Hat Security Response Team


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