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Pardus: PostgreSQL: Denial of Service Print E-mail
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Posted by Benjamin D. Thomas   
A weakness and a security issue have been reported in PostgreSQL, which can be exploited by malicious users to disclose potentially sensitive information or cause a DoS (Denial of Service).

------------------------------------------------------------------------
Pardus Linux Security Advisory 2009-41            security@pardus.org.tr
------------------------------------------------------------------------
      Date: 2009-03-25
  Severity: 3
      Type: Remote
------------------------------------------------------------------------

Summary
=======

A weakness and a security issue have been reported in PostgreSQL, which
can be exploited by malicious users to disclose  potentially  sensitive
information or cause a DoS (Denial of Service).


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

1) An error exists within PostgreSQL's planner when executing low  cost
functions in combination with views. This  can  be  exploited  to  e.g.
disclose the content of columns intended to be inaccessible by the view
by creating and using a low cost function containing e.g.  the  "raise"
statement.



2) An infinite recursion error in conversion encoding can be  exploited
to  cause a  crash  and  temporarily  deny  database  interactions  by
specifying a mismatched conversion function.


Affected packages:

  Pardus 2008:
    postgresql-doc, all before 8.1.17-20-2
    postgresql-lib, all before 8.1.17-20-2
    postgresql-pl, all before 8.1.17-20-2
    postgresql-server, all before 8.1.17-20-2



Resolution
==========

There are update(s) for postgresql-doc, postgresql-lib,  postgresql-pl,
postgresql-server. You can update them via Package Manager  or  with  a
single command from console:

    pisi up postgresql-doc postgresql-lib postgresql-pl postgresql-server

References
==========

  * http://bugs.pardus.org.tr/show_bug.cgi?id=9356
  * http://secunia.com/advisories/34206/
  * http://www.postgresql.org/support/security.html
 
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