CVE-2010-3433

First published: Fri Oct 01 2010(Updated: )

A flaw was found in the way PostgreSQL handled SQL functions, created with SECURITY DEFINER keyword and implemented in PL/Perl or PL/Tcl languages. Once the PL/Perl or PL/Tcl procedural language was registered on particular database, a remote, authenticated user, running a specially-crafted PL/Perl or PL/Tcl script could use this flaw to bypass intended PostgreSQL SECURITY DEFINER function definition refinement / protection mechanism, allowing them to run particular PostgreSQL function under their effective user ID, potentially leading to escalation of their privileges. References: [1] <a href="http://www.postgresql.org/docs/8.1/interactive/plperl.html">http://www.postgresql.org/docs/8.1/interactive/plperl.html</a> [2] <a href="http://www.postgresql.org/docs/8.1/static/pltcl.html">http://www.postgresql.org/docs/8.1/static/pltcl.html</a> [3] <a href="http://www.postgresql.org/docs/8.1/interactive/sql-createfunction.html">http://www.postgresql.org/docs/8.1/interactive/sql-createfunction.html</a>

Credit: secalert@redhat.com

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