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AUSCERT External Security Bulletin Redistribution
ESB-2009.0464 -- [RedHat]
perl-DBD-Pg: Execute Arbitrary Code/Commands
14 May 2009
AusCERT Security Bulletin Summary
Publisher: Red Hat
Operating System: Red Hat Linux 5
Impact: Execute Arbitrary Code/Commands
Denial of Service
CVE Names: CVE-2009-1341 CVE-2009-0663
Original Bulletin: https://rhn.redhat.com/errata/RHSA-2009-0479.html
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Red Hat Security Advisory
Synopsis: Moderate: perl-DBD-Pg security update
Advisory ID: RHSA-2009:0479-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-0479.html
Issue date: 2009-05-13
CVE Names: CVE-2009-0663 CVE-2009-1341
An updated perl-DBD-Pg package that fixes two security issues is now
available for Red Hat Enterprise Linux 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Perl DBI is a database access Application Programming Interface (API) for
the Perl language. perl-DBD-Pg allows Perl applications to access
PostgreSQL database servers.
A heap-based buffer overflow flaw was discovered in the pg_getline function
implementation. If the pg_getline or getline functions read large,
untrusted records from a database, it could cause an application using
these functions to crash or, possibly, execute arbitrary code.
Note: After installing this update, pg_getline may return more data than
specified by its second argument, as this argument will be ignored. This is
consistent with current upstream behavior. Previously, the length limit
(the second argument) was not enforced, allowing a buffer overflow.
A memory leak flaw was found in the function performing the de-quoting of
BYTEA type values acquired from a database. An attacker able to cause an
application using perl-DBD-Pg to perform a large number of SQL queries
returning BYTEA records, could cause the application to use excessive
amounts of memory or, possibly, crash. (CVE-2009-1341)
All users of perl-DBD-Pg are advised to upgrade to this updated package,
which contains backported patches to fix these issues. Applications using
perl-DBD-Pg must be restarted for the update to take effect.
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
5. Bugs fixed (http://bugzilla.redhat.com/):
497367 - CVE-2009-0663 perl-DBD-Pg: pg_getline buffer overflow
497503 - CVE-2009-1341 perl-DBD-Pg: dequote_bytea memory leak
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Red Hat Enterprise Linux (v. 5 server):
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2009 Red Hat, Inc.
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