Ubuntu Security Notice USN-876-1
3rd January, 2010
postgresql-8.1, postgresql-8.3, postgresql-8.4 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.10
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Software description
- postgresql-8.1
- postgresql-8.3
- postgresql-8.4
Details
It was discovered that PostgreSQL did not properly handle certificates with
NULL characters in the Common Name field of X.509 certificates. An attacker
could exploit this to perform a man in the middle attack to view sensitive
information or alter encrypted communications. (CVE-2009-4034)
It was discovered that PostgreSQL did not properly manage session-local
state. A remote authenticated user could exploit this to escalate
priviliges within PostgreSQL. (CVE-2009-4136)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.10:
- postgresql-8.4 8.4.2-0ubuntu9.10
- Ubuntu 9.04:
- postgresql-8.3 8.3.9-0ubuntu9.04
- Ubuntu 8.10:
- postgresql-8.3 8.3.9-0ubuntu8.10
- Ubuntu 8.04 LTS:
- postgresql-8.3 8.3.9-0ubuntu8.04
- Ubuntu 6.06 LTS:
- postgresql-8.1 8.1.19-0ubuntu0.6.06
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.