Ubuntu Security Notice USN-3066-1
18th August, 2016
postgresql-9.1, postgresql-9.3, postgresql-9.5 vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Several security issues were fixed in PostgreSQL.
Software description
- postgresql-9.1
– Object-relational SQL database - postgresql-9.3
– Object-relational SQL database - postgresql-9.5
– object-relational SQL database
Details
Heikki Linnakangas discovered that PostgreSQL incorrectly handled certain
nested CASE/WHEN expressions. A remote attacker could possibly use this
issue to cause PostgreSQL to crash, resulting in a denial of service.
(CVE-2016-5423)
Nathan Bossart discovered that PostgreSQL incorrectly handled special
characters in database and role names. A remote attacker could possibly use
this issue to escalate privileges. (CVE-2016-5424)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.04 LTS:
-
postgresql-9.5
9.5.4-0ubuntu0.16.04
- Ubuntu 14.04 LTS:
-
postgresql-9.3
9.3.14-0ubuntu0.14.04
- Ubuntu 12.04 LTS:
-
postgresql-9.1
9.1.23-0ubuntu0.12.04
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.