ESB-2017.1865 - [RedHat] rh-postgresql95-postgresql: Multiple vulnerabilities 2017-08-01

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1865
           Moderate: rh-postgresql95-postgresql security update
                               1 August 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           rh-postgresql95-postgresql
Publisher:         Red Hat
Operating System:  Red Hat
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7486 CVE-2017-7485 CVE-2017-7484

Reference:         ESB-2017.1690
                   ESB-2017.1216

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2017:1838

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                   Red Hat Security Advisory

Synopsis:          Moderate: rh-postgresql95-postgresql security update
Advisory ID:       RHSA-2017:1838-01
Product:           Red Hat Satellite
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1838
Issue date:        2017-07-31
CVE Names:         CVE-2017-7484 CVE-2017-7485 CVE-2017-7486 
=====================================================================

1. Summary:

An update for rh-postgresql95-postgresql is now available for Red Hat
Satellite 5.8 and Red Hat Satellite 5.8 ELS.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

This update applies only to Satellite 5.8 instances using either embedded
or managed PostgreSQL databases.

There are manual steps required in order to finish the migration from
postgresql92-postgresql to rh-postgresql95-postgresql. If these steps are
not undertaken, the affected Satellite will continue to use PostgreSQL 9.2.

postgresql92-postgresql will be upgraded automatically to
rh-postgresql95-postgresql as part of an upgrade to Satellite 5.8.

2. Relevant releases/architectures:

Red Hat Satellite 5.8 (RHEL v.6) - s390x, x86_64
Red Hat Satellite 5.8 ELS (RHEL v.6) - s390x, x86_64
Red Hat Satellite Managed DB 5.8 (RHEL v.6) - s390x, x86_64
Red Hat Satellite Managed DB 5.8 ELS (RHEL v.6) - s390x, x86_64

3. Description:

PostgreSQL is an advanced object-relational database management system
(DBMS).

Security Fix(es):

* It was found that some selectivity estimation functions did not check
user privileges before providing information from pg_statistic, possibly
leaking information. A non-administrative database user could use this flaw
to steal some information from tables they are otherwise not allowed to
access. (CVE-2017-7484)

* It was discovered that the PostgreSQL client library (libpq) did not
enforce the use of TLS/SSL for a connection to a PostgreSQL server when the
PGREQUIRESSL environment variable was set. An man-in-the-middle attacker
could use this flaw to strip the SSL/TLS protection from a connection
between a client and a server. (CVE-2017-7485)

* It was found that the pg_user_mappings view could disclose information
about user mappings to a foreign database to non-administrative database
users. A database user with USAGE privilege for this mapping could, when
querying the view, obtain user mapping data, such as the username and
password used to connect to the foreign database. (CVE-2017-7486)

Red Hat would like to thank the PostgreSQL project for reporting these
issues. Upstream acknowledges Robert Haas as the original reporter of
CVE-2017-7484; Daniel Gustafsson as the original reporter of CVE-2017-7485;
and Andrew Wheelwright as the original reporter of CVE-2017-7486.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After applying this update restart Satellite database using following
command:

db-control stop && db-control start

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

1448078 - CVE-2017-7484 postgresql: Selectivity estimators bypass SELECT privilege checks
1448086 - CVE-2017-7485 postgresql: libpq ignores PGREQUIRESSL environment variable
1448089 - CVE-2017-7486 postgresql: pg_user_mappings view discloses foreign server passwords

6. Package List:

Red Hat Satellite Managed DB 5.8 (RHEL v.6):

Source:
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm

s390x:
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm

x86_64:
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.x86_64.rpm

Red Hat Satellite Managed DB 5.8 ELS (RHEL v.6):

Source:
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm

s390x:
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm

x86_64:
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.x86_64.rpm

Red Hat Satellite 5.8 (RHEL v.6):

Source:
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm

s390x:
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm

x86_64:
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.x86_64.rpm

Red Hat Satellite 5.8 ELS (RHEL v.6):

Source:
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm

s390x:
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm

x86_64:
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm
rh-postgresql95-postgresql-server-9.5.7-2.el6.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://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-7484
https://access.redhat.com/security/cve/CVE-2017-7485
https://access.redhat.com/security/cve/CVE-2017-7486
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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