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The PostgreSQL Global Development Group has released an update to all supported versions of our database system, including 11.1, 10.6, 9.6.11, 9.5.15, 9.4.20, and 9.3.25. This release fixes one security issue as well as bugs reported over the last three months.
All users using the affected versions of PostgreSQL should update as soon as possible. Please see the notes on "Updating" below for any post-update steps that may be required if you are using pg_stat_statements in your installation.
This update is also the final release for PostgreSQL 9.3, which is now end-of-life and will no longer receive any bug or security fixes. If your environment still uses PostgreSQL 9.3, please make plans to update to a community supported version as soon as possible. Please see our versioning policy for more information.
Security Issues
One security vulnerability has been closed by this release:
CVE-2018-16850: SQL injection in pg_upgrade and pg_dump, via CREATE TRIGGER ... REFERENCING.
Versions Affected: 10, 11
Using a purpose-crafted trigger definition, an attacker can run arbitrary SQL statements with superuser privileges when a superuser runs pg_upgrade on the database or during a pg_dump dump/restore cycle. This attack requires a CREATE privilege on some non-temporary schema or a TRIGGER privilege on a table. This is exploitable in the default PostgreSQL configuration, where all users have CREATE privilege on public schema.
Bug Fixes and Improvements
This update also fixes numerous bugs that were reported in the last several months. Some of these issues affect only version 11, but many affect all supported versions.
These releases include fixes that:
Ensure that automatically created child indexes are created in the same tablespace as the parent partitioned index
Fix several crashes with triggers
Fix problems with applying ON COMMIT DELETE ROWS to a partitioned temporary table
Fix how NULL values are handled when using LEFT JOIN with a parallelized hash join
Several fixes around using named or defaulted arguments in CALL statements
Fix for strict aggregate functions (i.e. aggregates that cannot accept NULL inputs) with ORDER BY columns that enforces the strictness check
Fix with CASE statements where an expression was cast to an array type
Disable an optimization for updating expression indexes in order to prevent a crash
Fix a memory leak that occurred on a specific case of using a SP-GiST index
Fix for pg_verify_checksums incorrectly reporting on files that are not expected to have checksums
Prevent the PostgreSQL server from starting when wal_level is set to a value that cannot support an existing replication slot
Ensure that the server will process already-received NOTIFY and SIGTERM interrupts before waiting for client input
Allow PL/Ruby to work with newer versions of PostgreSQL
Fix for character-class checks on Windows for Unicode characters above U+FFFF, which affected full-text search as well as contrib/ltree and contrib/pg_trgm
Fix a case where psql would not report the receipt of a message from a NOTIFY call until after the next command
Fix build problems on macOS 10.14 (Mojave)
Several build fixes for the Windows platform
This updates also contains tzdata release 2018g for DST law changes in Chile, Fiji, Morocco, and Russia (Volgograd), plus historical corrections for China, Hawaii, Japan, Macau, and North Korea.
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This release fixes two security issues. This release also fixes issues with VACUUM, GIN indexes, and hash indexes that could lead to data corruption, as well as fixes for using parallel queries and logical replication.
Security Issues
* CVE-2018-1052: Fix the processing of partition keys containing multiple expressions
* CVE-2018-1053: Ensure that all temporary files made with "pg_upgrade" are non-world-readable
Bug Fixes and Improvements
* Fix crash and potential disclosure of backend memory when processing partition keys containing multiple expressions
* Fix potential disclosure of temporary files containing database passwords created by pg_upgrade by not allowing these files to be world-accessible
* Fix cases where VACUUM would not remove dead rows if they were updated while "key-share" locked, leading to potential data corruption
* Fix for GIN indexes to prevent bloat by ensuring the pending-insertions list is cleaned up by VACUUM
* Fix potential index corruption with hash indexes due to failure to mark metapages as dirty
* Fix several potential crash scenarios for parallel queries, including when a bitmap heap scan cannot allocate memory
* Fix several potential hang-ups in parallel queries, including when a parallel worker fails to start
* Fix collection of EXPLAIN statistics from parallel workers
* Prevent fake deadlock failures when multiple sessions are running CREATE INDEX CONCURRENTLY
* Fix for trigger behavior when using logical replication
* Several fixes for "walsender" functionality to improve stability as well as visibility into the replication process
* Fix logical decoding to correctly clean up disk files for crashed transactions
* Several fixes for identity columns, including disallowing identity columns on tables derived from composite types and partitions
* Fix handling of list partitioning constraints for partition keys of boolean and array types
* Fix incorrectly generated plans for UPDATE and DELETE queries when a table has a mix of inherited regular and foreign child tables
* Fix incorrect query results from cases involving GROUPING SETS when used with flattened subqueries
* Fix UNION/INTERSECT/EXCEPT over zero columns, e.g. "SELECT UNION SELECT;"
* Several fixes for subqueries within a LATERAL subquery
* Several improvements for query planning estimation
* Allow a client that supports SCRAM channel binding, such as a future version of PostgreSQL or libpq, to connect to a PostgreSQL 10 server
* Fix sample INSTR() functions used to help transition from Oracle(r) PL/SQL to PostgreSQL PL/pgSQL to correctly match Oracle functional behavior
* Fix pg_dump to make permissions (ACL), security label, and comment entries reliably identifiable in archive outputs
* Modify behavior for contrib/cube's "cube ~> int" operator to make it compatible with KNN search. This is a backwards incompatible change and any expression indexes or materialized views using this operator will need to be reindexed and refreshed, respectively.
* Several fixes in contrib/postgres_fdw to prevent query planner errors
* Added modern examples of auto-start scripts for PostgreSQL on macOS in the contrib/start-scripts/macos directory
* Several fixes for Windows, including postmaster startup and compatibility with libperl
* Spinlock fixes and support for Motorola 68K and 88K architectures
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for the PR 52787 options adjustment, as a precaution.
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supported versions of our database system, including 9.5.4, 9.4.9, 9.3.14, 9.2.18 and 9.1.23. This release fixes two security issues. It also patches a number of other bugs reported over the last three months. Users who rely on security isolation between database users should update as soon as possible. Other users should plan to update at the next convenient downtime.
Security Issues
---------------
Two security holes have been closed by this release:
CVE-2016-5423: certain nested CASE expressions can cause the server to crash.
CVE-2016-5424: database and role names with embedded special characters can allow code injection during administrative operations like pg_dumpall.
The fix for the second issue also adds an option, -reuse-previous, to psql's \connect command. pg_dumpall will also refuse to handle database and role names containing line breaks after the update. For more information on these issues and how they affect backwards-compatibility, see the Release Notes.
Bug Fixes and Improvements
--------------------------
This update also fixes a number of bugs reported in the last few months. Some of these issues affect only version 9.5, but many affect all supported versions:
Fix misbehaviors of IS NULL/IS NOT NULL with composite values
Fix three areas where INSERT ... ON CONFLICT failed to work properly with other SQL features.
Make INET and CIDR data types properly reject bad IPv6 values
Prevent crash in "point ## lseg" operator for NaN input
Avoid possible crash in pg_get_expr()
Fix several one-byte buffer over-reads in to_number()
Don't needlessly plan query if WITH NO DATA is specified
Avoid crash-unsafe state in expensive heap_update() paths
Fix hint bit update during WAL replay of row locking operations
Avoid unnecessary "could not serialize access" with FOR KEY SHARE
Avoid crash in postgres -C when the specified variable is a null string
Fix two issues with logical decoding and subtransactions
Ensure that backends see up-to-date statistics for shared catalogs
Prevent possible failure when vacuuming multixact IDs in an upgraded database
When a manual ANALYZE specifies columns, don't reset changes_since_analyze
Fix ANALYZE's overestimation of n_distinct for columns with nulls
Fix bug in b-tree mark/restore processing
Fix building of large (bigger than shared_buffers) hash indexes
Prevent infinite loop in GiST index build with NaN values
Fix possible crash during a nearest-neighbor indexscan
Fix "PANIC: failed to add BRIN tuple" error
Prevent possible crash during background worker shutdown
Many fixes for issues in parallel pg_dump and pg_restore
Make pg_basebackup accept -Z 0 as no compression
Make regression tests safe for Danish and Welsh locales
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supported versions of our database system, including 9.5.2, 9.4.7, 9.3.12, 9.2.16, and 9.1.21. This release fixes two security issues and one index corruption issue in version 9.5. It also contains a variety of bug fixes for earlier versions. Users of PostgreSQL 9.5.0 or 9.5.1 should update as soon as possible.
This release closes security hole CVE-2016-2193, where a query plan might get reused for more than one ROLE in the same session. This could cause the wrong set of Row Level Security (RLS) policies to be used for the query.
The update also fixes CVE-2016-3065, a server crash bug triggered by using pageinspect with BRIN index pages. Since an attacker might be able to expose a few bytes of server memory, this crash is being treated as a security issue.
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This release fixes two security issues, as well as several bugs found
over the last four months.
CVE-2016-0773 Unicode regular expression buffer overflow
CVE-2016-0766 PL/Java privilege escalation
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This release primarily fixes issues not successfully fixed in prior releases. It should be applied as soon as possible all users of major versions 9.3 and 9.4. Other users should apply at the next available downtime.
Crash Recovery Fixes:
Earlier update releases attempted to fix an issue in PostgreSQL 9.3 and 9.4 with "multixact wraparound", but failed to account for issues doing multixact cleanup during crash recovery. This could cause servers to be unable to restart after a crash. As such, all users of 9.3 and 9.4 should apply this update as soon as possible.
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having a PKGNAME of p5-*, or depending such a package,
for perl-5.22.0.
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supported version of the database system, including versions 9.3.5, 9.2.9, 9.1.14, 9.0.18, and 8.4.22. This minor release fixes a number of issues discovered and reported by users over the last four months, including some data corruption issues, and is the last update of version 8.4. Users of version 9.3 will want to update at the earliest opportunity; users of version 8.4 will want to schedule an upgrade to a supported PostgreSQL version.
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Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
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This update fixes CVE-2014-0060, in which PostgreSQL did not properly enforce the WITH ADMIN OPTION permission for ROLE management.
This update also fixes some issues which affect binary replication and row locking, and can cause recoverable data corruption in some cases.
In addition to the above, the following issues are fixed in this release:
Fix WAL logging of visibility map change
Make sure that GIN indexes log all insertions
Get pause_at_recovery_target to pause at correct time
Ensure walreceiver sends hot-standby feedback messages on time
Prevent timeout interrupts from taking control away from mainline code
Eliminate several race conditions
Fix some broken HINTs in error messages
Prevent server lockup on SSL connection loss
Fix two Unicode handling issues
Prevent crash on certain subselect syntax
Prevent crash on select from zero column table
Fix two bugs with LATERAL
Fix issue with UNION ALL, partitioning, and updates
Ensure that ANALYZE understands domains over ranges
Eliminate permissions check when using default tablespace
Fix memory leakage in JSON functions
Allow extensions with event triggers
Distinguish numbers correctly in JSON output
Fix permissions for pg_start_backup() and pg_stop_backup()
Accept SHIFT_JIS as locale name
Fix .* expansion for SQL function variables
Prevent infinite loop on some COPY connection failures
Several fixes for client issues on Windows
Enable building PostgreSQL with Visual Studio 2013
Update time zone files for recent changes
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* Add materialized views
* Make simple views auto-updatable
* Add many features for the JSON data type, including operators and functions to extract elements from JSON values
* Implement SQL-standard LATERAL option for FROM-clause subqueries and function calls
* Allow foreign data wrappers to support writes (inserts/updates/deletes) on foreign tables
* Add a Postgres foreign data wrapper to allow access to other Postgres servers
* Add support for event triggers
* Add optional ability to checksum data pages and report corruption
* Prevent non-key-field row updates from blocking foreign key checks
* Greatly reduce System V shared memory requirements
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