freshmeat.net: Security - Red Hat: Updated postgresql packages fix several security issues

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Red Hat: Updated postgresql packages fix several security issues
by Patrick Lenz, in Security - Sun, Feb 10th 2008 14:21 UTC

PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql packages include the client programs and libraries needed to access a PostgreSQL DBMS server. Will Drewry discovered multiple flaws in PostgreSQL's regular expression engine. An authenticated attacker could use these flaws to cause a denial of service by causing the PostgreSQL server to crash, enter an infinite loop, or use extensive CPU and memory resources while processing queries containing specially crafted regular expressions. Applications that accept regular expressions from untrusted sources may expose this problem to unauthorized attackers. A privilege escalation flaw was discovered in PostgreSQL. An authenticated attacker could create an index function that would be executed with administrator privileges during database maintenance tasks, such as database vacuuming. A privilege escalation flaw was discovered in PostgreSQL's Database Link library (dblink). An authenticated attacker could use dblink to possibly escalate privileges on systems with "trust" or "ident" authentication configured. Please note that dblink functionality is not enabled by default, and can only by enabled by a database administrator on systems with the postgresql-contrib package installed. Fixed packages are available from updates.redhat.com.

Links: updates.redhat.com

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=====================================================================
                  Red Hat Security Advisory

Synopsis:          Moderate: postgresql security update
Advisory ID:       RHSA-2008:0040-01
Product:           Red Hat Application Stack
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0040.html
Issue date:        2008-02-01
CVE Names:         CVE-2007-3278 CVE-2007-4769 CVE-2007-4772 
                  CVE-2007-6067 CVE-2007-6600 CVE-2007-6601 
=====================================================================

1. Summary:

Updated postgresql packages that fix several security issues are now
available for Red Hat Application Stack v1 and v2.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Application Stack v1 for Enterprise Linux AS (v.4) - i386, x86_64
Red Hat Application Stack v1 for Enterprise Linux ES (v.4) - i386, x86_64
Red Hat Application Stack v2 for Enterprise Linux (v.5) - i386, x86_64

3. Description:

PostgreSQL is an advanced Object-Relational database management system
(DBMS). The postgresql packages include the client programs and libraries
needed to access a PostgreSQL DBMS server.

Will Drewry discovered multiple flaws in PostgreSQL's regular expression
engine. An authenticated attacker could use these flaws to cause a denial
of service by causing the PostgreSQL server to crash, enter an infinite
loop, or use extensive CPU and memory resources while processing queries
containing specially crafted regular expressions. Applications that accept
regular expressions from untrusted sources may expose this problem to
unauthorized attackers. (CVE-2007-4769, CVE-2007-4772, CVE-2007-6067)

A privilege escalation flaw was discovered in PostgreSQL. An authenticated
attacker could create an index function that would be executed with
administrator privileges during database maintenance tasks, such as
database vacuuming. (CVE-2007-6600)

A privilege escalation flaw was discovered in PostgreSQL's Database Link
library (dblink). An authenticated attacker could use dblink to possibly
escalate privileges on systems with "trust" or "ident" authentication
configured. Please note that dblink functionality is not enabled by
default, and can only by enabled by a database administrator on systems
with the postgresql-contrib package installed.
(CVE-2007-3278, CVE-2007-6601)

All postgresql users should upgrade to these updated packages, which
include PostgreSQL 8.1.11 and 8.2.6, and resolve these issues.

4. Solution:

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
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

309141 - CVE-2007-3278 dblink allows proxying of database connections via 127.0.0.1
315231 - CVE-2007-4769 postgresql integer overflow in regex code
316511 - CVE-2007-4772 postgresql DoS via infinite loop in regex NFA optimization code
400931 - CVE-2007-6067 postgresql: tempory DoS caused by slow regex NFA cleanup
427127 - CVE-2007-6600 PostgreSQL privilege escalation
427128 - CVE-2007-6601 PostgreSQL privilege escalation via dblink

6. Package List:

Red Hat Application Stack v1 for Enterprise Linux AS (v.4):

Source:
ftp://updates.redhat.com/enterprise/4AS/en/RHWAS/SRPMS/postgresql-8.1.11-1.el4s1.1.src.rpm

i386:
postgresql-8.1.11-1.el4s1.1.i386.rpm
postgresql-contrib-8.1.11-1.el4s1.1.i386.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.i386.rpm
postgresql-devel-8.1.11-1.el4s1.1.i386.rpm
postgresql-docs-8.1.11-1.el4s1.1.i386.rpm
postgresql-libs-8.1.11-1.el4s1.1.i386.rpm
postgresql-pl-8.1.11-1.el4s1.1.i386.rpm
postgresql-python-8.1.11-1.el4s1.1.i386.rpm
postgresql-server-8.1.11-1.el4s1.1.i386.rpm
postgresql-tcl-8.1.11-1.el4s1.1.i386.rpm
postgresql-test-8.1.11-1.el4s1.1.i386.rpm

x86_64:
postgresql-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-contrib-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.i386.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-devel-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-docs-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-libs-8.1.11-1.el4s1.1.i386.rpm
postgresql-libs-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-pl-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-python-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-server-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-tcl-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-test-8.1.11-1.el4s1.1.x86_64.rpm

Red Hat Application Stack v1 for Enterprise Linux ES (v.4):

Source:
ftp://updates.redhat.com/enterprise/4ES/en/RHWAS/SRPMS/postgresql-8.1.11-1.el4s1.1.src.rpm

i386:
postgresql-8.1.11-1.el4s1.1.i386.rpm
postgresql-contrib-8.1.11-1.el4s1.1.i386.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.i386.rpm
postgresql-devel-8.1.11-1.el4s1.1.i386.rpm
postgresql-docs-8.1.11-1.el4s1.1.i386.rpm
postgresql-libs-8.1.11-1.el4s1.1.i386.rpm
postgresql-pl-8.1.11-1.el4s1.1.i386.rpm
postgresql-python-8.1.11-1.el4s1.1.i386.rpm
postgresql-server-8.1.11-1.el4s1.1.i386.rpm
postgresql-tcl-8.1.11-1.el4s1.1.i386.rpm
postgresql-test-8.1.11-1.el4s1.1.i386.rpm

x86_64:
postgresql-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-contrib-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.i386.rpm
postgresql-debuginfo-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-devel-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-docs-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-libs-8.1.11-1.el4s1.1.i386.rpm
postgresql-libs-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-pl-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-python-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-server-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-tcl-8.1.11-1.el4s1.1.x86_64.rpm
postgresql-test-8.1.11-1.el4s1.1.x86_64.rpm

Red Hat Application Stack v2 for Enterprise Linux (v.5):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/postgresql-8.2.6-1.el5s2.src.rpm

i386:
postgresql-8.2.6-1.el5s2.i386.rpm
postgresql-contrib-8.2.6-1.el5s2.i386.rpm
postgresql-debuginfo-8.2.6-1.el5s2.i386.rpm
postgresql-devel-8.2.6-1.el5s2.i386.rpm
postgresql-docs-8.2.6-1.el5s2.i386.rpm
postgresql-libs-8.2.6-1.el5s2.i386.rpm
postgresql-plperl-8.2.6-1.el5s2.i386.rpm
postgresql-plpython-8.2.6-1.el5s2.i386.rpm
postgresql-pltcl-8.2.6-1.el5s2.i386.rpm
postgresql-python-8.2.6-1.el5s2.i386.rpm
postgresql-server-8.2.6-1.el5s2.i386.rpm
postgresql-tcl-8.2.6-1.el5s2.i386.rpm
postgresql-test-8.2.6-1.el5s2.i386.rpm

x86_64:
postgresql-8.2.6-1.el5s2.x86_64.rpm
postgresql-contrib-8.2.6-1.el5s2.x86_64.rpm
postgresql-debuginfo-8.2.6-1.el5s2.i386.rpm
postgresql-debuginfo-8.2.6-1.el5s2.x86_64.rpm
postgresql-devel-8.2.6-1.el5s2.i386.rpm
postgresql-devel-8.2.6-1.el5s2.x86_64.rpm
postgresql-docs-8.2.6-1.el5s2.x86_64.rpm
postgresql-libs-8.2.6-1.el5s2.i386.rpm
postgresql-libs-8.2.6-1.el5s2.x86_64.rpm
postgresql-plperl-8.2.6-1.el5s2.x86_64.rpm
postgresql-plpython-8.2.6-1.el5s2.x86_64.rpm
postgresql-pltcl-8.2.6-1.el5s2.x86_64.rpm
postgresql-python-8.2.6-1.el5s2.x86_64.rpm
postgresql-server-8.2.6-1.el5s2.x86_64.rpm
postgresql-tcl-8.2.6-1.el5s2.x86_64.rpm
postgresql-test-8.2.6-1.el5s2.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3278
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4769
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4772
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6067
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6600
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6601
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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Referenced projects

PostgreSQL - A robust Object-Relational DBMS.