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Ubuntu Security Notice USN-2772-1
October 16, 2015

postgresql-9.1, postgresql-9.3, postgresql-9.4 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 15.04
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary:

PostgreSQL could be made to crash or expose private information if it
handled specially crafted data.

Software Description:

• postgresql-9.4: Object-relational SQL database
• postgresql-9.3: Object-relational SQL database
• postgresql-9.1: Object-relational SQL database

Details:

Josh Kupershmidt discovered the pgCrypto extension could expose
several bytes of server memory if the crypt() function was provided a
too-short salt. An attacker could use this flaw to read private data.
(CVE-2015-5288)

Oskari Saarenmaa discovered that the json and jsonb handlers could exhaust
available stack space. An attacker could use this flaw to perform a denial
of service attack. This issue only affected Ubuntu 14.04 LTS and Ubuntu
15.04. (CVE-2015-5289)

Update instructions:

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

Ubuntu 15.04:
postgresql-9.4 9.4.5-0ubuntu0.15.04

Ubuntu 14.04 LTS:
postgresql-9.3 9.3.10-0ubuntu0.14.04

Ubuntu 12.04 LTS:
postgresql-9.1 9.1.19-0ubuntu0.12.04

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:
http://www.ubuntu.com/usn/usn-2772-1
CVE-2015-5288, CVE-2015-5289

Package Information:
https://launchpad.net/ubuntu/+source/postgresql-9.4/9.4.5-0ubuntu0.15.04
https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.10-0ubuntu0.14.04
https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.19-0ubuntu0.12.04

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