It was discovered that PostgreSQL could be made to unload and reload an already loaded module by using the LOAD command. A remote authenticated attacker could exploit this to cause a denial of service. This issue did not affect Ubuntu 6.06 LTS. (CVE-2009-3229)
Due to an incomplete fix for CVE-2007-6600, RESET ROLE and RESET SESSION AUTHORIZATION operations were allowed inside security-definer functions. A remote authenticated attacker could exploit this to escalate privileges within PostgreSQL. (CVE-2009-3230)
21 September 2009
A security issue affects these releases of Ubuntu and its derivatives:
It was discovered that PostgreSQL could be made to unload and reload an already loaded module by using the LOAD command. A remote authenticated attacker could exploit this to cause a denial of service. This issue did not affect Ubuntu 6.06 LTS. (CVE-2009-3229)
Due to an incomplete fix for CVE-2007-6600, RESET ROLE and RESET SESSION AUTHORIZATION operations were allowed inside security-definer functions. A remote authenticated attacker could exploit this to escalate privileges within PostgreSQL. (CVE-2009-3230)
It was discovered that PostgreSQL did not properly perform LDAP authentication under certain circumstances. When configured to use LDAP with anonymous binds, a remote attacker could bypass authentication by supplying an empty password. This issue did not affect Ubuntu 6.06 LTS. (CVE-2009-3231)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon