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Ubuntu: New PostgreSQL packages fix security vulnerabilities

It was discovered that PostgreSQL incorrectly handled certain bytes passed to the crypt() function when using DES encryption. An attacker could use this flaw to incorrectly handle authentication. It was discovered that PostgreSQL incorrectly handled SECURITY DEFINER and SET attributes on procedural call handlers. An attacker could use this flaw to cause PostgreSQL to crash, leading to a denial of service.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1461-1
June 05, 2012

postgresql-8.3, postgresql-8.4, postgresql-9.1 vulnerabilities
==========================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

PostgreSQL could be made to crash or incorrectly handle authentication.

Software Description:
- postgresql-9.1: Object-relational SQL database
- postgresql-8.4: Object-relational SQL database
- postgresql-8.3: Object-relational SQL database

Details:

It was discovered that PostgreSQL incorrectly handled certain bytes passed
to the crypt() function when using DES encryption. An attacker could use
this flaw to incorrectly handle authentication. (CVE-2012-2143)

It was discovered that PostgreSQL incorrectly handled SECURITY DEFINER and
SET attributes on procedural call handlers. An attacker could use this flaw
to cause PostgreSQL to crash, leading to a denial of service.
(CVE-2012-2655)

Update instructions:

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

Ubuntu 12.04 LTS:
 postgresql-9.1                  9.1.4-0ubuntu12.04

Ubuntu 11.10:
 postgresql-9.1                  9.1.4-0ubuntu11.10

Ubuntu 11.04:
 postgresql-8.4                  8.4.12-0ubuntu11.04

Ubuntu 10.04 LTS:
 postgresql-8.4                  8.4.12-0ubuntu10.04

Ubuntu 8.04 LTS:
 postgresql-8.3                  8.3.19-0ubuntu8.04

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
 http://www.ubuntu.com/usn/usn-1461-1
 CVE-2012-2143, CVE-2012-2655

Package Information:
 https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.4-0ubuntu12.04
 https://launchpad.net/ubuntu/+source/postgresql-9.1/9.1.4-0ubuntu11.10
 https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.12-0ubuntu11.04
 https://launchpad.net/ubuntu/+source/postgresql-8.4/8.4.12-0ubuntu10.04
 https://launchpad.net/ubuntu/+source/postgresql-8.3/8.3.19-0ubuntu8.04
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