Ubuntu 12.04 LTS: USN-1461-1 Moderate: PostgreSQL Authentication Issue

ubuntu

June 5, 2012

PostgreSQL could be made to crash or incorrectly handle authentication.

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)

Topics Covered

security advisory moderate denial of service update authentication issue ubuntu postgresql

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.