This update contains a critical fix to the pg_upgrade utility
which prevents significant downtime issues. Do not use
pg_upgrade without installing this update first.
The issue with pg_upgrade and the fix are detailed on the PostgreSQL
wiki: http://wiki.postgresql.org/wiki/20110408pg_upgrade_fix
Users who have already used pg_upgrade should run the database repair
script given on that page on their databases as soon as possible.
See the release notes for each version at
http://www.postgresql.org/docs/current/static/release.html for a full
list of changes with details.
Allow the username of the postgresql user to configurable for 8.4 and 9.0.
Largely inspired by the work of Jason Helfman [153668, 153136].
Change PGUSER knob to PG_USER not to clash with PGUSER environment.
PR: 153668, 153136, 155493, 155137
Remove postgresql-contrib in favour for postgresqlNN-contrib.
This way we will get packages built, which is nice.
Security: CVE-2010-1169
Security: CVE-2010-1170
The PostgreSQL Project today released minor versions updating all active
branches of the PostgreSQL object-relational database system, including
versions 8.4.4, 8.3.11, 8.2.17, 8.1.21, 8.0.25, and 7.4.29. This release
fixes moderate-risk security issues with PL/perl and PL/tcl, as well as
a data corruption issue with standby databases. Users of any of these
three features should update their PostgreSQL installations immediately.
The PL/perl security fix closes a security hole in PL/perl
procedures which could allow privilege escalation on the host system,
caused by a flaw in Safe.pm; see CVE-2010-1169 and CVE-2010-1447 for
details. A second patch prevents PL/tcl's pltcl_modules table from
being subverted in order to run arbitrary Tcl scripts; see
CVE-2010-1170. These issues only affect users who have enabled either
of these two stored procedure languages.
Also corrected is use of the command ALTER TABLE SET TABLESPACE, which
previously could cause data corruption on Warm Standby database slaves.
This issue affects only version 8.4.
There are also 21 other bug fixes in this release, some of which apply
only to version 8.4, and a few of which are specifically for Windows.
While these are generally fixes for minor issues, among the changes are:
* Fix for a combinational crash condition
* Prevent normal users from resetting some GUCs in
their own role definitions
* Correctly apply constraint exclusion in UPDATE and DELETE queries
* Minor fixes for WAL archiving
* Update timezone data for 12 zones
See the release notes for a full list of changes with details.
Releasenotes at http://www.postgresql.org/docs/current/static/release.html
