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AA-2009.0061                  AUSCERT Advisory

                             [Win][UNIX/Linux]
                    New versions of PostgreSQL released
                               24 March 2009
- ---------------------------------------------------------------------------

        AusCERT Advisory Summary
        ------------------------

Product:              PostgreSQL
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Denial of Service
Access:               Existing Account
CVE Names:            CVE-2009-0922
Member content until: Tuesday, April 21 2009

OVERVIEW:

       Updated versions of PostgreSQL have been released correcting a 
       security vulnerability.
 

IMPACT:

       CVE-2009-0922 has been assigned to this vulnerability which details:

       "PostgreSQL 8.3.6 allows remote authenticated users to cause a denial 
       of service (stack consumption) via mismatched encoding conversion 
       requests." [1]

       This has been confirmed by the vendor in the release notes of the 
       releases for versions 8.3.7, 8.2.13, 8.1.17, 8.0.21. [2,3,4,5]

       Version 7.4.25 has also been released but at the time this bulletin
       was published the release notes were not available on the vendor's 
       site.


MITIGATION:

       Users can download the latest version of PostgreSQL from the vendor's
       website. [6]


REFERENCES:

       [1] Vulnerability Summary for CVE-2009-0922 
           http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-0922

       [2] PostgreSQL 8.3.7 Documentation
           http://www.postgresql.org/docs/8.3/static/release-8-3-7.html
 
       [3] PostgreSQL 8.2.13 Documentation
           http://www.postgresql.org/docs/8.2/static/release-8-2-13.html

       [4] PostgreSQL 8.1.17 Documentation
           http://www.postgresql.org/docs/8.1/static/release.html#RELEASE-8-1-17

       [5] PostgreSQL 8.0.21 Documentation
           http://www.postgresql.org/docs/8.0/static/release.html#RELEASE-8-0-21

       [6] PostgreSQL: Downloads
           http://www.postgresql.org/download/

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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