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AA-2009.0150                  AUSCERT Advisory

                             [Win][UNIX/Linux]
                          php: Denial of Service
                               30 July 2009
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        AusCERT Advisory Summary
        ------------------------

Product:              PHP 5
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Denial of Service
Access:               Remote/Unauthenticated
Member content until: Wednesday, July 22 2009

Revision History:     July 30 2009: Member content date fix
                      June 24 2009: Initial Release

OVERVIEW:

       A new version of PHP 5 has been released, correcting one security
       issue and over one hundred bugs.


IMPACT:

       A segmentation fault caused by a problem in exif_read_data() on 
       certain corrupted .jpeg files can result in a denial of service. 
       [1, 2]


MITIGATION:

       The vendor recommends upgrading to version 5.2.10. [3]


REFERENCES:

       [1] PHP 5.2.10 Release Announcement
           http://www.php.net/releases/5_2_10.php

       [2] php.bugs #48378
           http://news.php.net/php.bugs/137691

       [3] PHP 5.2.10
           http://news.php.net/php.bugs/137691

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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