Synopsis

Moderate: rh-postgresql95-postgresql security update

Type/Severity

Security Advisory: Moderate

Topic

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.

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.

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

Affected Products

• Red Hat Satellite 5.8 x86_64
• Red Hat Satellite 5.8 s390x
• Red Hat Satellite 5 Managed DB 5.8 x86_64
• Red Hat Satellite 5 Managed DB 5.8 s390x

Fixes

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

CVEs

• CVE-2017-7484
• CVE-2017-7485
• CVE-2017-7486

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Satellite 5.8

SRPM
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm	SHA-256: 44b46154a25b69ba27b2fc9404a0b46a2b4563a892b082a9e7c83966e55570d9
x86_64
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm	SHA-256: b81bfcfe595ab239e2372e6fd833fc3e5e0c497f605d777d37bdee68e6a04ea2
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm	SHA-256: dc9c1d46127f1cc681abb8b8c8fa7d76c132d12f36c2339863c41e8939d2b84e
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm	SHA-256: 9106a784e8338c09c32e4d3e65e8e48aad8cc3a9757cf4120862ed6b8a7f5be4
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm	SHA-256: df3a87c3e0d3d51dd87465e45c66e39513f97df2b111ae89a10c448e447b90ff
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm	SHA-256: a8b9781016c412fafec8f000b6bac9d94d7de98e88711e8d0a56e0f066e06b65
rh-postgresql95-postgresql-server-9.5.7-2.el6.x86_64.rpm	SHA-256: db8573649429212e049cb8b1c1bb240cb076a57548d799a3c726507e09871518
s390x
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm	SHA-256: 3446f096d8f42d3774fc4ef28a338b4c4304440aad755d7cd60850d263f65e77
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm	SHA-256: 2faea1fa681f4735eaa5131fdbeb852e92b0022101d7b09db4195c94b4bdcca1
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm	SHA-256: 92cb65fc445d2654158736b8ae388a9361ff51e455ce428f1f29b7fde6b0cddf
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm	SHA-256: 8669137bdccf9ab688de37c58f8cc291d1702c5f821292628bb575889e985c26
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm	SHA-256: f6ad557f2a5dd7cab4c3f4b9c4927df7a2cc46d794bcdc9050952f4140e7f435
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm	SHA-256: 478bae0ed413296bae15ce54559259a81b97ffd335f9266093ee6a9cd28bf78f

Red Hat Satellite 5 Managed DB 5.8

SRPM
rh-postgresql95-postgresql-9.5.7-2.el6.src.rpm	SHA-256: 44b46154a25b69ba27b2fc9404a0b46a2b4563a892b082a9e7c83966e55570d9
x86_64
rh-postgresql95-postgresql-9.5.7-2.el6.x86_64.rpm	SHA-256: b81bfcfe595ab239e2372e6fd833fc3e5e0c497f605d777d37bdee68e6a04ea2
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.x86_64.rpm	SHA-256: dc9c1d46127f1cc681abb8b8c8fa7d76c132d12f36c2339863c41e8939d2b84e
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.x86_64.rpm	SHA-256: 9106a784e8338c09c32e4d3e65e8e48aad8cc3a9757cf4120862ed6b8a7f5be4
rh-postgresql95-postgresql-libs-9.5.7-2.el6.x86_64.rpm	SHA-256: df3a87c3e0d3d51dd87465e45c66e39513f97df2b111ae89a10c448e447b90ff
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.x86_64.rpm	SHA-256: a8b9781016c412fafec8f000b6bac9d94d7de98e88711e8d0a56e0f066e06b65
rh-postgresql95-postgresql-server-9.5.7-2.el6.x86_64.rpm	SHA-256: db8573649429212e049cb8b1c1bb240cb076a57548d799a3c726507e09871518
s390x
rh-postgresql95-postgresql-9.5.7-2.el6.s390x.rpm	SHA-256: 3446f096d8f42d3774fc4ef28a338b4c4304440aad755d7cd60850d263f65e77
rh-postgresql95-postgresql-contrib-9.5.7-2.el6.s390x.rpm	SHA-256: 2faea1fa681f4735eaa5131fdbeb852e92b0022101d7b09db4195c94b4bdcca1
rh-postgresql95-postgresql-debuginfo-9.5.7-2.el6.s390x.rpm	SHA-256: 92cb65fc445d2654158736b8ae388a9361ff51e455ce428f1f29b7fde6b0cddf
rh-postgresql95-postgresql-libs-9.5.7-2.el6.s390x.rpm	SHA-256: 8669137bdccf9ab688de37c58f8cc291d1702c5f821292628bb575889e985c26
rh-postgresql95-postgresql-pltcl-9.5.7-2.el6.s390x.rpm	SHA-256: f6ad557f2a5dd7cab4c3f4b9c4927df7a2cc46d794bcdc9050952f4140e7f435
rh-postgresql95-postgresql-server-9.5.7-2.el6.s390x.rpm	SHA-256: 478bae0ed413296bae15ce54559259a81b97ffd335f9266093ee6a9cd28bf78f