Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Ubuntu 16.04 LTS USN-3066-1 Critical: PostgreSQL Denial Of Service

ubuntu
Calendar Grey August 18, 2016
Scroller Ubuntu
Ubuntu Security Notice USN-3067-1 highlights vulnerabilities in MySQL, focusing on data integrity and unauthorized access. Protect your systems!
Several security issues were fixed in PostgreSQL.

Summary

Several security issues were fixed in PostgreSQL.

Software Description:

- postgresql-9.5: object-relational SQL database

- postgresql-9.3: Object-relational SQL database

- postgresql-9.1: 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)

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu PostgreSQL

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

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

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.

References

https://ubuntu.com/security/notices/USN-3066-1

CVE-2016-5423, CVE-2016-5424

Severity
critical
Lowest
Low
Medium
High
Critical

August 18, 2016

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu PostgreSQL

Package Information

https://launchpad.net/ubuntu/+source/postgresql-9.5/9.5.4-0ubuntu0.16.04
https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.14-0ubuntu0.14.04
https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.23-0ubuntu0.12.04

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.