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.
If you are using the ICU patch, please consult UPDATING.
Improve periodic cleanup, suggested by claudius (at) ambtec.de. [1]
PR: 210941 [1]
Security: CVE-2016-5423, CVE-2016-5424
Security Fixes for Regular Expressions, PL/Java
This release closes security hole CVE-2016-0773, an issue with regular
expression (regex) parsing. Prior code allowed users to pass in expressions
which included out-of-range Unicode characters, triggering a backend crash.
This issue is critical for PostgreSQL systems with untrusted users or which
generate regexes based on user input.
The update also fixes CVE-2016-0766, a privilege escalation issue for users of
PL/Java. Certain custom configuration settings (GUCS) for PL/Java will now be
modifiable only by the database superuser
URL: http://www.postgresql.org/about/news/1644/
Security: CVE-2016-0773, CVE-2016-0766
